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Diagnose uses of undeclared variables

by the strict project Copyright (C) 2010-2026 std.strict authors

Licenseworkflow statuscodecov.io

This is a pure Lua library for detecting access to uninitialized variables from Lua 5.1 (including LuaJIT), 5.2, 5.3, 5.4 and 5.5. The libraries are copyright by their authors (see the AUTHORS file for details), and released under the MIT license (the same license as Lua itself). There is no warranty.

When using this module, all variables (including functions!) must be declared through a regular assignment (even assigning nil will do) in a strict scope before being used anywhere or assigned to inside a nested scope.

Installation

The simplest and best way to install strict is with LuaRocks. To install the latest release (recommended):

 luarocks install std.strict

To install current git master (for testing, before submitting a bug report for example):

 luarocks install https://raw.githubusercontent.com/lua-stdlib/strict/master/std.strict-git-1.rockspec

The best way to install without LuaRocks is to copy the std/strict directory into your package search path.

Use

The strict package returns a callable, which when called returns a strict environment table that requires all variables be declared before use. For compatibility with Lua > 5.1, you must assign this environment table to _ENV; if necessary, setfenv will be called automatically for compatibility with Lua 5.1 and LuaJIT.

-- For example, use of the global environment from this scope.local_ENV=require'std.strict' (_G)
-- Or, prevent all access to global environment.local_ENV=require'std.strict' {}
-- Or, control access to limited environment from this scope.local_ENV=require'std.strict' {
setmetatable=setmetatable,
type=type,
table_unpack=table.unpackorunpack,
}

Documentation

The latest release is documented with LDoc. Pre-built HTML files are included in the release tarball.

Bug reports and code contributions

This library is written and maintained by its users.

Please make bug reports and suggestions as GitHub Issues. Pull requests are especially appreciated.

But first, please check that your issue has not already been reported by someone else, and that it is not already fixed by master in preparation for the next release (see Installation section above for how to temporarily install master with LuaRocks).

There is no strict coding style, but please bear in mind the following points when proposing changes:

  1. Follow existing code. There are a lot of useful patterns and avoided traps there.

  2. 3-character indentation using SPACES in Lua sources: It makes rogue TABs easier to see, and lines up nicely with 'if' and 'end' keywords.

  3. Simple strings are easiest to type using single-quote delimiters, saving double-quotes for where a string contains apostrophes.

  4. Save horizontal space by only using SPACES where the parser requires them.

  5. Use vertical space to separate out compound statements to help the coverage reports discover untested lines.

About

Check for use of undeclared variables

lua-stdlib.github.io/strict

Topics

lualuajitluarocksstdlib

Resources

Readme
MIT license
Activity
Custom properties

Stars

39 stars

Watchers

1 watching

Forks

1 fork
Report repository

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
BranchesTags
Repository files navigation
Diagnose uses of undeclared variables
by the strict project
Copyright (C) 2010-2026 std.strict authors
Licenseworkflow statuscodecov.io
This is a pure Lua library for detecting access to uninitialized
variables from Lua 5.1 (including LuaJIT), 5.2, 5.3, 5.4 and
5.5. The libraries are copyright by their authors (see the
AUTHORS file for details), and released under the
MIT license (the same license as Lua itself). There is no warranty.
When using this module, all variables (including functions!) must be
declared through a regular assignment (even assigning nil will do) in a
strict scope before being used anywhere or assigned to inside a nested
scope.
Installation
The simplest and best way to install strict is with LuaRocks. To
install the latest release (recommended):
 luarocks install std.strict
To install current git master (for testing, before submitting a bug
report for example):
 luarocks install https://raw.githubusercontent.com/lua-stdlib/strict/master/std.strict-git-1.rockspec
The best way to install without LuaRocks is to copy the
std/strict directory into your package search path.
Use
The strict package returns a callable, which when called returns a
strict environment table that requires all variables be declared before
use. For compatibility with Lua > 5.1, you must assign this environment
table to _ENV; if necessary, setfenv will be called automatically
for compatibility with Lua 5.1 and LuaJIT.
-- For example, use of the global environment from this scope.local_ENV=require'std.strict' (_G)
-- Or, prevent all access to global environment.local_ENV=require'std.strict' {}
-- Or, control access to limited environment from this scope.local_ENV=require'std.strict' {
setmetatable=setmetatable,
type=type,
table_unpack=table.unpackorunpack,
}
Documentation
The latest release is documented with LDoc.
Pre-built HTML files are included in the release tarball.
Bug reports and code contributions
This library is written and maintained by its users.
Please make bug reports and suggestions as GitHub Issues.
Pull requests are especially appreciated.
But first, please check that your issue has not already been reported by
someone else, and that it is not already fixed by master in
preparation for the next release (see Installation section above for how
to temporarily install master with LuaRocks).
There is no strict coding style, but please bear in mind the following
points when proposing changes:
  1. Follow existing code. There are a lot of useful patterns and avoided
traps there.
  2. 3-character indentation using SPACES in Lua sources: It makes rogue
TABs easier to see, and lines up nicely with 'if' and 'end' keywords.
  3. Simple strings are easiest to type using single-quote delimiters,
saving double-quotes for where a string contains apostrophes.
  4. Save horizontal space by only using SPACES where the parser requires
them.
  5. Use vertical space to separate out compound statements to help the
coverage reports discover untested lines.
About
Check for use of undeclared variables
lua-stdlib.github.io/strict
Topics
lualuajitluarocksstdlib
Resources
Readme
MIT license
Activity
Custom properties
Stars
39 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Diagnose uses of undeclared variables
by the strict project
Copyright (C) 2010-2026 std.strict authors
Licenseworkflow statuscodecov.io
This is a pure Lua library for detecting access to uninitialized
variables from Lua 5.1 (including LuaJIT), 5.2, 5.3, 5.4 and
5.5. The libraries are copyright by their authors (see the
AUTHORS file for details), and released under the
MIT license (the same license as Lua itself). There is no warranty.
When using this module, all variables (including functions!) must be
declared through a regular assignment (even assigning nil will do) in a
strict scope before being used anywhere or assigned to inside a nested
scope.
Installation
The simplest and best way to install strict is with LuaRocks. To
install the latest release (recommended):
 luarocks install std.strict
To install current git master (for testing, before submitting a bug
report for example):
 luarocks install https://raw.githubusercontent.com/lua-stdlib/strict/master/std.strict-git-1.rockspec
The best way to install without LuaRocks is to copy the
std/strict directory into your package search path.
Use
The strict package returns a callable, which when called returns a
strict environment table that requires all variables be declared before
use. For compatibility with Lua > 5.1, you must assign this environment
table to _ENV; if necessary, setfenv will be called automatically
for compatibility with Lua 5.1 and LuaJIT.
-- For example, use of the global environment from this scope.local_ENV=require'std.strict' (_G)
-- Or, prevent all access to global environment.local_ENV=require'std.strict' {}
-- Or, control access to limited environment from this scope.local_ENV=require'std.strict' {
setmetatable=setmetatable,
type=type,
table_unpack=table.unpackorunpack,
}
Documentation
The latest release is documented with LDoc.
Pre-built HTML files are included in the release tarball.
Bug reports and code contributions
This library is written and maintained by its users.
Please make bug reports and suggestions as GitHub Issues.
Pull requests are especially appreciated.
But first, please check that your issue has not already been reported by
someone else, and that it is not already fixed by master in
preparation for the next release (see Installation section above for how
to temporarily install master with LuaRocks).
There is no strict coding style, but please bear in mind the following
points when proposing changes:
  1. Follow existing code. There are a lot of useful patterns and avoided
traps there.
  2. 3-character indentation using SPACES in Lua sources: It makes rogue
TABs easier to see, and lines up nicely with 'if' and 'end' keywords.
  3. Simple strings are easiest to type using single-quote delimiters,
saving double-quotes for where a string contains apostrophes.
  4. Save horizontal space by only using SPACES where the parser requires
them.
  5. Use vertical space to separate out compound statements to help the
coverage reports discover untested lines.
About
Check for use of undeclared variables
lua-stdlib.github.io/strict
Topics
lualuajitluarocksstdlib
Resources
Readme
MIT license
Activity
Custom properties
Stars
39 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Diagnose uses of undeclared variables
by the strict project
Copyright (C) 2010-2026 std.strict authors
Licenseworkflow statuscodecov.io
This is a pure Lua library for detecting access to uninitialized
variables from Lua 5.1 (including LuaJIT), 5.2, 5.3, 5.4 and
5.5. The libraries are copyright by their authors (see the
AUTHORS file for details), and released under the
MIT license (the same license as Lua itself). There is no warranty.
When using this module, all variables (including functions!) must be
declared through a regular assignment (even assigning nil will do) in a
strict scope before being used anywhere or assigned to inside a nested
scope.
Installation
The simplest and best way to install strict is with LuaRocks. To
install the latest release (recommended):
 luarocks install std.strict
To install current git master (for testing, before submitting a bug
report for example):
 luarocks install https://raw.githubusercontent.com/lua-stdlib/strict/master/std.strict-git-1.rockspec
The best way to install without LuaRocks is to copy the
std/strict directory into your package search path.
Use
The strict package returns a callable, which when called returns a
strict environment table that requires all variables be declared before
use. For compatibility with Lua > 5.1, you must assign this environment
table to _ENV; if necessary, setfenv will be called automatically
for compatibility with Lua 5.1 and LuaJIT.
-- For example, use of the global environment from this scope.local_ENV=require'std.strict' (_G)
-- Or, prevent all access to global environment.local_ENV=require'std.strict' {}
-- Or, control access to limited environment from this scope.local_ENV=require'std.strict' {
setmetatable=setmetatable,
type=type,
table_unpack=table.unpackorunpack,
}
Documentation
The latest release is documented with LDoc.
Pre-built HTML files are included in the release tarball.
Bug reports and code contributions
This library is written and maintained by its users.
Please make bug reports and suggestions as GitHub Issues.
Pull requests are especially appreciated.
But first, please check that your issue has not already been reported by
someone else, and that it is not already fixed by master in
preparation for the next release (see Installation section above for how
to temporarily install master with LuaRocks).
There is no strict coding style, but please bear in mind the following
points when proposing changes:
  1. Follow existing code. There are a lot of useful patterns and avoided
traps there.
  2. 3-character indentation using SPACES in Lua sources: It makes rogue
TABs easier to see, and lines up nicely with 'if' and 'end' keywords.
  3. Simple strings are easiest to type using single-quote delimiters,
saving double-quotes for where a string contains apostrophes.
  4. Save horizontal space by only using SPACES where the parser requires
them.
  5. Use vertical space to separate out compound statements to help the
coverage reports discover untested lines.
About
Check for use of undeclared variables
lua-stdlib.github.io/strict
Topics
lualuajitluarocksstdlib
Resources
Readme
MIT license
Activity
Custom properties
Stars
39 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
Repository files navigation
Diagnose uses of undeclared variables
by the strict project
Copyright (C) 2010-2026 std.strict authors
Licenseworkflow statuscodecov.io
This is a pure Lua library for detecting access to uninitialized
variables from Lua 5.1 (including LuaJIT), 5.2, 5.3, 5.4 and
5.5. The libraries are copyright by their authors (see the
AUTHORS file for details), and released under the
MIT license (the same license as Lua itself). There is no warranty.
When using this module, all variables (including functions!) must be
declared through a regular assignment (even assigning nil will do) in a
strict scope before being used anywhere or assigned to inside a nested
scope.
Installation
The simplest and best way to install strict is with LuaRocks. To
install the latest release (recommended):
 luarocks install std.strict
To install current git master (for testing, before submitting a bug
report for example):
 luarocks install https://raw.githubusercontent.com/lua-stdlib/strict/master/std.strict-git-1.rockspec
The best way to install without LuaRocks is to copy the
std/strict directory into your package search path.
Use
The strict package returns a callable, which when called returns a
strict environment table that requires all variables be declared before
use. For compatibility with Lua > 5.1, you must assign this environment
table to _ENV; if necessary, setfenv will be called automatically
for compatibility with Lua 5.1 and LuaJIT.
-- For example, use of the global environment from this scope.local_ENV=require'std.strict' (_G)
-- Or, prevent all access to global environment.local_ENV=require'std.strict' {}
-- Or, control access to limited environment from this scope.local_ENV=require'std.strict' {
setmetatable=setmetatable,
type=type,
table_unpack=table.unpackorunpack,
}
Documentation
The latest release is documented with LDoc.
Pre-built HTML files are included in the release tarball.
Bug reports and code contributions
This library is written and maintained by its users.
Please make bug reports and suggestions as GitHub Issues.
Pull requests are especially appreciated.
But first, please check that your issue has not already been reported by
someone else, and that it is not already fixed by master in
preparation for the next release (see Installation section above for how
to temporarily install master with LuaRocks).
There is no strict coding style, but please bear in mind the following
points when proposing changes:
  1. Follow existing code. There are a lot of useful patterns and avoided
traps there.
  2. 3-character indentation using SPACES in Lua sources: It makes rogue
TABs easier to see, and lines up nicely with 'if' and 'end' keywords.
  3. Simple strings are easiest to type using single-quote delimiters,
saving double-quotes for where a string contains apostrophes.
  4. Save horizontal space by only using SPACES where the parser requires
them.
  5. Use vertical space to separate out compound statements to help the
coverage reports discover untested lines.
About
Check for use of undeclared variables
lua-stdlib.github.io/strict
Topics
lualuajitluarocksstdlib
Resources
Readme
MIT license
Activity
Custom properties
Stars
39 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Diagnose uses of undeclared variables
by the strict project
Copyright (C) 2010-2026 std.strict authors
Licenseworkflow statuscodecov.io
This is a pure Lua library for detecting access to uninitialized
variables from Lua 5.1 (including LuaJIT), 5.2, 5.3, 5.4 and
5.5. The libraries are copyright by their authors (see the
AUTHORS file for details), and released under the
MIT license (the same license as Lua itself). There is no warranty.
When using this module, all variables (including functions!) must be
declared through a regular assignment (even assigning nil will do) in a
strict scope before being used anywhere or assigned to inside a nested
scope.
Installation
The simplest and best way to install strict is with LuaRocks. To
install the latest release (recommended):
 luarocks install std.strict
To install current git master (for testing, before submitting a bug
report for example):
 luarocks install https://raw.githubusercontent.com/lua-stdlib/strict/master/std.strict-git-1.rockspec
The best way to install without LuaRocks is to copy the
std/strict directory into your package search path.
Use
The strict package returns a callable, which when called returns a
strict environment table that requires all variables be declared before
use. For compatibility with Lua > 5.1, you must assign this environment
table to _ENV; if necessary, setfenv will be called automatically
for compatibility with Lua 5.1 and LuaJIT.
-- For example, use of the global environment from this scope.local_ENV=require'std.strict' (_G)
-- Or, prevent all access to global environment.local_ENV=require'std.strict' {}
-- Or, control access to limited environment from this scope.local_ENV=require'std.strict' {
setmetatable=setmetatable,
type=type,
table_unpack=table.unpackorunpack,
}
Documentation
The latest release is documented with LDoc.
Pre-built HTML files are included in the release tarball.
Bug reports and code contributions
This library is written and maintained by its users.
Please make bug reports and suggestions as GitHub Issues.
Pull requests are especially appreciated.
But first, please check that your issue has not already been reported by
someone else, and that it is not already fixed by master in
preparation for the next release (see Installation section above for how
to temporarily install master with LuaRocks).
There is no strict coding style, but please bear in mind the following
points when proposing changes:
  1. Follow existing code. There are a lot of useful patterns and avoided
traps there.
  2. 3-character indentation using SPACES in Lua sources: It makes rogue
TABs easier to see, and lines up nicely with 'if' and 'end' keywords.
  3. Simple strings are easiest to type using single-quote delimiters,
saving double-quotes for where a string contains apostrophes.
  4. Save horizontal space by only using SPACES where the parser requires
them.
  5. Use vertical space to separate out compound statements to help the
coverage reports discover untested lines.
About
Check for use of undeclared variables
lua-stdlib.github.io/strict
Topics
lualuajitluarocksstdlib
Resources
Readme
MIT license
Activity
Custom properties
Stars
39 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Diagnose uses of undeclared variables
by the strict project
Copyright (C) 2010-2026 std.strict authors
Licenseworkflow statuscodecov.io
This is a pure Lua library for detecting access to uninitialized
variables from Lua 5.1 (including LuaJIT), 5.2, 5.3, 5.4 and
5.5. The libraries are copyright by their authors (see the
AUTHORS file for details), and released under the
MIT license (the same license as Lua itself). There is no warranty.
When using this module, all variables (including functions!) must be
declared through a regular assignment (even assigning nil will do) in a
strict scope before being used anywhere or assigned to inside a nested
scope.
Installation
The simplest and best way to install strict is with LuaRocks. To
install the latest release (recommended):
 luarocks install std.strict
To install current git master (for testing, before submitting a bug
report for example):
 luarocks install https://raw.githubusercontent.com/lua-stdlib/strict/master/std.strict-git-1.rockspec
The best way to install without LuaRocks is to copy the
std/strict directory into your package search path.
Use
The strict package returns a callable, which when called returns a
strict environment table that requires all variables be declared before
use. For compatibility with Lua > 5.1, you must assign this environment
table to _ENV; if necessary, setfenv will be called automatically
for compatibility with Lua 5.1 and LuaJIT.
-- For example, use of the global environment from this scope.local_ENV=require'std.strict' (_G)
-- Or, prevent all access to global environment.local_ENV=require'std.strict' {}
-- Or, control access to limited environment from this scope.local_ENV=require'std.strict' {
setmetatable=setmetatable,
type=type,
table_unpack=table.unpackorunpack,
}
Documentation
The latest release is documented with LDoc.
Pre-built HTML files are included in the release tarball.
Bug reports and code contributions
This library is written and maintained by its users.
Please make bug reports and suggestions as GitHub Issues.
Pull requests are especially appreciated.
But first, please check that your issue has not already been reported by
someone else, and that it is not already fixed by master in
preparation for the next release (see Installation section above for how
to temporarily install master with LuaRocks).
There is no strict coding style, but please bear in mind the following
points when proposing changes:
  1. Follow existing code. There are a lot of useful patterns and avoided
traps there.
  2. 3-character indentation using SPACES in Lua sources: It makes rogue
TABs easier to see, and lines up nicely with 'if' and 'end' keywords.
  3. Simple strings are easiest to type using single-quote delimiters,
saving double-quotes for where a string contains apostrophes.
  4. Save horizontal space by only using SPACES where the parser requires
them.
  5. Use vertical space to separate out compound statements to help the
coverage reports discover untested lines.
About
Check for use of undeclared variables
lua-stdlib.github.io/strict
Topics
lualuajitluarocksstdlib
Resources
Readme
MIT license
Activity
Custom properties
Stars
39 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
BranchesTags
Repository files navigation
Diagnose uses of undeclared variables
by the strict project
Copyright (C) 2010-2026 std.strict authors
Licenseworkflow statuscodecov.io
This is a pure Lua library for detecting access to uninitialized
variables from Lua 5.1 (including LuaJIT), 5.2, 5.3, 5.4 and
5.5. The libraries are copyright by their authors (see the
AUTHORS file for details), and released under the
MIT license (the same license as Lua itself). There is no warranty.
When using this module, all variables (including functions!) must be
declared through a regular assignment (even assigning nil will do) in a
strict scope before being used anywhere or assigned to inside a nested
scope.
Installation
The simplest and best way to install strict is with LuaRocks. To
install the latest release (recommended):
 luarocks install std.strict
To install current git master (for testing, before submitting a bug
report for example):
 luarocks install https://raw.githubusercontent.com/lua-stdlib/strict/master/std.strict-git-1.rockspec
The best way to install without LuaRocks is to copy the
std/strict directory into your package search path.
Use
The strict package returns a callable, which when called returns a
strict environment table that requires all variables be declared before
use. For compatibility with Lua > 5.1, you must assign this environment
table to _ENV; if necessary, setfenv will be called automatically
for compatibility with Lua 5.1 and LuaJIT.
-- For example, use of the global environment from this scope.local_ENV=require'std.strict' (_G)
-- Or, prevent all access to global environment.local_ENV=require'std.strict' {}
-- Or, control access to limited environment from this scope.local_ENV=require'std.strict' {
setmetatable=setmetatable,
type=type,
table_unpack=table.unpackorunpack,
}
Documentation
The latest release is documented with LDoc.
Pre-built HTML files are included in the release tarball.
Bug reports and code contributions
This library is written and maintained by its users.
Please make bug reports and suggestions as GitHub Issues.
Pull requests are especially appreciated.
But first, please check that your issue has not already been reported by
someone else, and that it is not already fixed by master in
preparation for the next release (see Installation section above for how
to temporarily install master with LuaRocks).
There is no strict coding style, but please bear in mind the following
points when proposing changes:
  1. Follow existing code. There are a lot of useful patterns and avoided
traps there.
  2. 3-character indentation using SPACES in Lua sources: It makes rogue
TABs easier to see, and lines up nicely with 'if' and 'end' keywords.
  3. Simple strings are easiest to type using single-quote delimiters,
saving double-quotes for where a string contains apostrophes.
  4. Save horizontal space by only using SPACES where the parser requires
them.
  5. Use vertical space to separate out compound statements to help the
coverage reports discover untested lines.
About
Check for use of undeclared variables
lua-stdlib.github.io/strict
Topics
lualuajitluarocksstdlib
Resources
Readme
MIT license
Activity
Custom properties
Stars
39 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages