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test.js
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csv.js

A simple CSV parser in JavaScript for the browser (and nodejs)

Features

  • Parse CSV to 2-dimension String array
  • Specify column names or use the first row as column names
  • Custom delimeter, quote character and row delimeter

Example

See test.js

Low-level API

CSV.CSVParser(String str, Object options)

Construct a CSVParser. A CSVParser hold some parser states.

options is an object that can have 3 properties: 'delim', 'quote', 'rowdelim'

Example:

varparser=newCSV.CSVParser('a\tb\tc',{delim:'\t',quote:'"',rowdelim:'\r\n'});while(parser.hasNext()){varrow=parser.nextRow();// do something with row}

Every time you call nextRow, the parser will parse next portion of input. This allows you parse only front part of a string with the remainder untouched. You can stop anywhere.

boolean CSVParser.hasNext()

String[] CSVParser.nextRow()

High-level API

All high-level APIs are implemented by the low-level API in a few lines. See bottom part of csv.js

String[][] CSV.parse(String str, Object options)

String[] CSV.parseOne(String str, Object options)

Object[] CSV.bindColumns(String[][] rows, String[] columns)

If specified, use columns as column names. Otherwise use the first row.

Dependency

  • runtime: no
  • test: nodejs

Run test

node test.js
firefox test.htm

Performance Benchmark

CSV.js vs jquery-csv

Compatibility

csv.js can be used with:

  • browser
  • nodejs
  • AMD / CMD / require.js

Standard compliance

This implementation is compliant to RFC4180, except for the default line delimeter: this implementation use \n, but RFC4180 states it should be \r\n.

Use the following code if you want strict RFC4180 behavior:

CSV.DefaultOptions.rowdelim = '\r\n';

Under the hood

This is a PEG (Parsing Expression Grammar) parser, written in recursive descent style.

The PEG I use is taken from lpeg's homepage (in Lua):

field='"' * ((lpeg.P(1) -'"') +lpeg.P'""')^0*'"' +
(1-lpeg.S',\n"')^0record=field* (',' *field)^0* (lpeg.P'\n' +-1)

Links

About

A simple CSV parser in JavaScript

Resources

Readme
Activity

Stars

12 stars

Watchers

1 watching

Forks

4 forks
Report repository

Releases

Packages

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" + '

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README.md
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csv.moddef
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test.htm
test.js
test.js
Repository files navigation
csv.js
A simple CSV parser in JavaScript for the browser (and nodejs)
Features
  • Parse CSV to 2-dimension String array
  • Specify column names or use the first row as column names
  • Custom delimeter, quote character and row delimeter
Example
See test.js
Low-level API
CSV.CSVParser(String str, Object options)
Construct a CSVParser. A CSVParser hold some parser states.
options is an object that can have 3 properties: 'delim', 'quote', 'rowdelim'
Example:
varparser=newCSV.CSVParser('a\tb\tc',{delim:'\t',quote:'"',rowdelim:'\r\n'});while(parser.hasNext()){varrow=parser.nextRow();// do something with row}
Every time you call nextRow, the parser will parse next portion of input. This allows you parse only front part of a string with the remainder untouched. You can stop anywhere.
boolean CSVParser.hasNext()
String[] CSVParser.nextRow()
High-level API
All high-level APIs are implemented by the low-level API in a few lines. See bottom part of csv.js
String[][] CSV.parse(String str, Object options)
String[] CSV.parseOne(String str, Object options)
Object[] CSV.bindColumns(String[][] rows, String[] columns)
If specified, use columns as column names. Otherwise use the first row.
Dependency
  • runtime: no
  • test: nodejs
Run test
node test.js
firefox test.htm

Performance Benchmark
CSV.js vs jquery-csv
Compatibility
csv.js can be used with:
  • browser
  • nodejs
  • AMD / CMD / require.js
Standard compliance
This implementation is compliant to RFC4180, except for the default line delimeter: this implementation use \n, but RFC4180 states it should be \r\n.
Use the following code if you want strict RFC4180 behavior:
CSV.DefaultOptions.rowdelim = '\r\n';

Under the hood
This is a PEG (Parsing Expression Grammar) parser, written in recursive descent style.
The PEG I use is taken from lpeg's homepage (in Lua):
field='"' * ((lpeg.P(1) -'"') +lpeg.P'""')^0*'"' +
(1-lpeg.S',\n"')^0record=field* (',' *field)^0* (lpeg.P'\n' +-1)
Links
About
A simple CSV parser in JavaScript
Resources
Readme
Activity
Stars
12 stars
Watchers
1 watching
Forks
4 forks
Report repository
Releases
Packages
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('^' + ".*" + '

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18 Commits
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NameName
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README.md
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csv.js
csv.moddef
csv.moddef
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test.htm
test.js
test.js
Repository files navigation
csv.js
A simple CSV parser in JavaScript for the browser (and nodejs)
Features
  • Parse CSV to 2-dimension String array
  • Specify column names or use the first row as column names
  • Custom delimeter, quote character and row delimeter
Example
See test.js
Low-level API
CSV.CSVParser(String str, Object options)
Construct a CSVParser. A CSVParser hold some parser states.
options is an object that can have 3 properties: 'delim', 'quote', 'rowdelim'
Example:
varparser=newCSV.CSVParser('a\tb\tc',{delim:'\t',quote:'"',rowdelim:'\r\n'});while(parser.hasNext()){varrow=parser.nextRow();// do something with row}
Every time you call nextRow, the parser will parse next portion of input. This allows you parse only front part of a string with the remainder untouched. You can stop anywhere.
boolean CSVParser.hasNext()
String[] CSVParser.nextRow()
High-level API
All high-level APIs are implemented by the low-level API in a few lines. See bottom part of csv.js
String[][] CSV.parse(String str, Object options)
String[] CSV.parseOne(String str, Object options)
Object[] CSV.bindColumns(String[][] rows, String[] columns)
If specified, use columns as column names. Otherwise use the first row.
Dependency
  • runtime: no
  • test: nodejs
Run test
node test.js
firefox test.htm

Performance Benchmark
CSV.js vs jquery-csv
Compatibility
csv.js can be used with:
  • browser
  • nodejs
  • AMD / CMD / require.js
Standard compliance
This implementation is compliant to RFC4180, except for the default line delimeter: this implementation use \n, but RFC4180 states it should be \r\n.
Use the following code if you want strict RFC4180 behavior:
CSV.DefaultOptions.rowdelim = '\r\n';

Under the hood
This is a PEG (Parsing Expression Grammar) parser, written in recursive descent style.
The PEG I use is taken from lpeg's homepage (in Lua):
field='"' * ((lpeg.P(1) -'"') +lpeg.P'""')^0*'"' +
(1-lpeg.S',\n"')^0record=field* (',' *field)^0* (lpeg.P'\n' +-1)
Links
About
A simple CSV parser in JavaScript
Resources
Readme
Activity
Stars
12 stars
Watchers
1 watching
Forks
4 forks
Report repository
Releases
Packages
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('^' + ".*" + '

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This repository was archived by the owner on Feb 23, 2025. It is now read-only.

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18 Commits
Folders and files
NameName
Last commit message
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README.md
README.md
csv.js
csv.js
csv.moddef
csv.moddef
test.htm
test.htm
test.js
test.js
Repository files navigation
csv.js
A simple CSV parser in JavaScript for the browser (and nodejs)
Features
  • Parse CSV to 2-dimension String array
  • Specify column names or use the first row as column names
  • Custom delimeter, quote character and row delimeter
Example
See test.js
Low-level API
CSV.CSVParser(String str, Object options)
Construct a CSVParser. A CSVParser hold some parser states.
options is an object that can have 3 properties: 'delim', 'quote', 'rowdelim'
Example:
varparser=newCSV.CSVParser('a\tb\tc',{delim:'\t',quote:'"',rowdelim:'\r\n'});while(parser.hasNext()){varrow=parser.nextRow();// do something with row}
Every time you call nextRow, the parser will parse next portion of input. This allows you parse only front part of a string with the remainder untouched. You can stop anywhere.
boolean CSVParser.hasNext()
String[] CSVParser.nextRow()
High-level API
All high-level APIs are implemented by the low-level API in a few lines. See bottom part of csv.js
String[][] CSV.parse(String str, Object options)
String[] CSV.parseOne(String str, Object options)
Object[] CSV.bindColumns(String[][] rows, String[] columns)
If specified, use columns as column names. Otherwise use the first row.
Dependency
  • runtime: no
  • test: nodejs
Run test
node test.js
firefox test.htm

Performance Benchmark
CSV.js vs jquery-csv
Compatibility
csv.js can be used with:
  • browser
  • nodejs
  • AMD / CMD / require.js
Standard compliance
This implementation is compliant to RFC4180, except for the default line delimeter: this implementation use \n, but RFC4180 states it should be \r\n.
Use the following code if you want strict RFC4180 behavior:
CSV.DefaultOptions.rowdelim = '\r\n';

Under the hood
This is a PEG (Parsing Expression Grammar) parser, written in recursive descent style.
The PEG I use is taken from lpeg's homepage (in Lua):
field='"' * ((lpeg.P(1) -'"') +lpeg.P'""')^0*'"' +
(1-lpeg.S',\n"')^0record=field* (',' *field)^0* (lpeg.P'\n' +-1)
Links
About
A simple CSV parser in JavaScript
Resources
Readme
Activity
Stars
12 stars
Watchers
1 watching
Forks
4 forks
Report repository
Releases
Packages
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" + '

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This repository was archived by the owner on Feb 23, 2025. It is now read-only.

BranchesTags
Latest commit
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18 Commits
Folders and files
NameName
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README.md
README.md
csv.js
csv.js
csv.moddef
csv.moddef
test.htm
test.htm
test.js
test.js
Repository files navigation
csv.js
A simple CSV parser in JavaScript for the browser (and nodejs)
Features
  • Parse CSV to 2-dimension String array
  • Specify column names or use the first row as column names
  • Custom delimeter, quote character and row delimeter
Example
See test.js
Low-level API
CSV.CSVParser(String str, Object options)
Construct a CSVParser. A CSVParser hold some parser states.
options is an object that can have 3 properties: 'delim', 'quote', 'rowdelim'
Example:
varparser=newCSV.CSVParser('a\tb\tc',{delim:'\t',quote:'"',rowdelim:'\r\n'});while(parser.hasNext()){varrow=parser.nextRow();// do something with row}
Every time you call nextRow, the parser will parse next portion of input. This allows you parse only front part of a string with the remainder untouched. You can stop anywhere.
boolean CSVParser.hasNext()
String[] CSVParser.nextRow()
High-level API
All high-level APIs are implemented by the low-level API in a few lines. See bottom part of csv.js
String[][] CSV.parse(String str, Object options)
String[] CSV.parseOne(String str, Object options)
Object[] CSV.bindColumns(String[][] rows, String[] columns)
If specified, use columns as column names. Otherwise use the first row.
Dependency
  • runtime: no
  • test: nodejs
Run test
node test.js
firefox test.htm

Performance Benchmark
CSV.js vs jquery-csv
Compatibility
csv.js can be used with:
  • browser
  • nodejs
  • AMD / CMD / require.js
Standard compliance
This implementation is compliant to RFC4180, except for the default line delimeter: this implementation use \n, but RFC4180 states it should be \r\n.
Use the following code if you want strict RFC4180 behavior:
CSV.DefaultOptions.rowdelim = '\r\n';

Under the hood
This is a PEG (Parsing Expression Grammar) parser, written in recursive descent style.
The PEG I use is taken from lpeg's homepage (in Lua):
field='"' * ((lpeg.P(1) -'"') +lpeg.P'""')^0*'"' +
(1-lpeg.S',\n"')^0record=field* (',' *field)^0* (lpeg.P'\n' +-1)
Links
About
A simple CSV parser in JavaScript
Resources
Readme
Activity
Stars
12 stars
Watchers
1 watching
Forks
4 forks
Report repository
Releases
Packages
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

This repository was archived by the owner on Feb 23, 2025. It is now read-only.

BranchesTags
Latest commit
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18 Commits
Folders and files
NameName
Last commit message
Last commit date
.gitignore
.gitignore
README.md
README.md
csv.js
csv.js
csv.moddef
csv.moddef
test.htm
test.htm
test.js
test.js
Repository files navigation
csv.js
A simple CSV parser in JavaScript for the browser (and nodejs)
Features
  • Parse CSV to 2-dimension String array
  • Specify column names or use the first row as column names
  • Custom delimeter, quote character and row delimeter
Example
See test.js
Low-level API
CSV.CSVParser(String str, Object options)
Construct a CSVParser. A CSVParser hold some parser states.
options is an object that can have 3 properties: 'delim', 'quote', 'rowdelim'
Example:
varparser=newCSV.CSVParser('a\tb\tc',{delim:'\t',quote:'"',rowdelim:'\r\n'});while(parser.hasNext()){varrow=parser.nextRow();// do something with row}
Every time you call nextRow, the parser will parse next portion of input. This allows you parse only front part of a string with the remainder untouched. You can stop anywhere.
boolean CSVParser.hasNext()
String[] CSVParser.nextRow()
High-level API
All high-level APIs are implemented by the low-level API in a few lines. See bottom part of csv.js
String[][] CSV.parse(String str, Object options)
String[] CSV.parseOne(String str, Object options)
Object[] CSV.bindColumns(String[][] rows, String[] columns)
If specified, use columns as column names. Otherwise use the first row.
Dependency
  • runtime: no
  • test: nodejs
Run test
node test.js
firefox test.htm

Performance Benchmark
CSV.js vs jquery-csv
Compatibility
csv.js can be used with:
  • browser
  • nodejs
  • AMD / CMD / require.js
Standard compliance
This implementation is compliant to RFC4180, except for the default line delimeter: this implementation use \n, but RFC4180 states it should be \r\n.
Use the following code if you want strict RFC4180 behavior:
CSV.DefaultOptions.rowdelim = '\r\n';

Under the hood
This is a PEG (Parsing Expression Grammar) parser, written in recursive descent style.
The PEG I use is taken from lpeg's homepage (in Lua):
field='"' * ((lpeg.P(1) -'"') +lpeg.P'""')^0*'"' +
(1-lpeg.S',\n"')^0record=field* (',' *field)^0* (lpeg.P'\n' +-1)
Links
About
A simple CSV parser in JavaScript
Resources
Readme
Activity
Stars
12 stars
Watchers
1 watching
Forks
4 forks
Report repository
Releases
Packages
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('^' + ".*" + '

Skip to content

This repository was archived by the owner on Feb 23, 2025. It is now read-only.

BranchesTags
Latest commit
History
18 Commits
Folders and files
NameName
Last commit message
Last commit date
.gitignore
.gitignore
README.md
README.md
csv.js
csv.js
csv.moddef
csv.moddef
test.htm
test.htm
test.js
test.js
Repository files navigation
csv.js
A simple CSV parser in JavaScript for the browser (and nodejs)
Features
  • Parse CSV to 2-dimension String array
  • Specify column names or use the first row as column names
  • Custom delimeter, quote character and row delimeter
Example
See test.js
Low-level API
CSV.CSVParser(String str, Object options)
Construct a CSVParser. A CSVParser hold some parser states.
options is an object that can have 3 properties: 'delim', 'quote', 'rowdelim'
Example:
varparser=newCSV.CSVParser('a\tb\tc',{delim:'\t',quote:'"',rowdelim:'\r\n'});while(parser.hasNext()){varrow=parser.nextRow();// do something with row}
Every time you call nextRow, the parser will parse next portion of input. This allows you parse only front part of a string with the remainder untouched. You can stop anywhere.
boolean CSVParser.hasNext()
String[] CSVParser.nextRow()
High-level API
All high-level APIs are implemented by the low-level API in a few lines. See bottom part of csv.js
String[][] CSV.parse(String str, Object options)
String[] CSV.parseOne(String str, Object options)
Object[] CSV.bindColumns(String[][] rows, String[] columns)
If specified, use columns as column names. Otherwise use the first row.
Dependency
  • runtime: no
  • test: nodejs
Run test
node test.js
firefox test.htm

Performance Benchmark
CSV.js vs jquery-csv
Compatibility
csv.js can be used with:
  • browser
  • nodejs
  • AMD / CMD / require.js
Standard compliance
This implementation is compliant to RFC4180, except for the default line delimeter: this implementation use \n, but RFC4180 states it should be \r\n.
Use the following code if you want strict RFC4180 behavior:
CSV.DefaultOptions.rowdelim = '\r\n';

Under the hood
This is a PEG (Parsing Expression Grammar) parser, written in recursive descent style.
The PEG I use is taken from lpeg's homepage (in Lua):
field='"' * ((lpeg.P(1) -'"') +lpeg.P'""')^0*'"' +
(1-lpeg.S',\n"')^0record=field* (',' *field)^0* (lpeg.P'\n' +-1)
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A simple CSV parser in JavaScript
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1 watching
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4 forks
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, '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); }
})();
})();

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csv.js
A simple CSV parser in JavaScript for the browser (and nodejs)
Features
  • Parse CSV to 2-dimension String array
  • Specify column names or use the first row as column names
  • Custom delimeter, quote character and row delimeter
Example
See test.js
Low-level API
CSV.CSVParser(String str, Object options)
Construct a CSVParser. A CSVParser hold some parser states.
options is an object that can have 3 properties: 'delim', 'quote', 'rowdelim'
Example:
varparser=newCSV.CSVParser('a\tb\tc',{delim:'\t',quote:'"',rowdelim:'\r\n'});while(parser.hasNext()){varrow=parser.nextRow();// do something with row}
Every time you call nextRow, the parser will parse next portion of input. This allows you parse only front part of a string with the remainder untouched. You can stop anywhere.
boolean CSVParser.hasNext()
String[] CSVParser.nextRow()
High-level API
All high-level APIs are implemented by the low-level API in a few lines. See bottom part of csv.js
String[][] CSV.parse(String str, Object options)
String[] CSV.parseOne(String str, Object options)
Object[] CSV.bindColumns(String[][] rows, String[] columns)
If specified, use columns as column names. Otherwise use the first row.
Dependency
  • runtime: no
  • test: nodejs
Run test
node test.js
firefox test.htm

Performance Benchmark
CSV.js vs jquery-csv
Compatibility
csv.js can be used with:
  • browser
  • nodejs
  • AMD / CMD / require.js
Standard compliance
This implementation is compliant to RFC4180, except for the default line delimeter: this implementation use \n, but RFC4180 states it should be \r\n.
Use the following code if you want strict RFC4180 behavior:
CSV.DefaultOptions.rowdelim = '\r\n';

Under the hood
This is a PEG (Parsing Expression Grammar) parser, written in recursive descent style.
The PEG I use is taken from lpeg's homepage (in Lua):
field='"' * ((lpeg.P(1) -'"') +lpeg.P'""')^0*'"' +
(1-lpeg.S',\n"')^0record=field* (',' *field)^0* (lpeg.P'\n' +-1)
Links
About
A simple CSV parser in JavaScript
Resources
Readme
Activity
Stars
12 stars
Watchers
1 watching
Forks
4 forks
Report repository
Releases
Packages
Contributors
Languages