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redbox-react

Build Status

The red box (aka red screen of death) renders an error in this “pretty” format:

red screen of death

Usage

Catch an error and give it to redbox-react. Works with

or manually:

constRedBox=require('redbox-react')conste=newError('boom')constbox=<RedBoxerror={e}/>

Here is a more useful, full-fleged example:

/* global __DEV__ */importReactfrom'react'import{render}from'react-dom'importAppfrom'./components/App'constroot=document.getElementById('root')if(__DEV__){constRedBox=require('redbox-react')try{render(<App/>,root)}catch(e){render(<RedBoxerror={e}/>,root)}}else{render(<App/>,root)}

What is this good for?

An error that's only in the console is only half the fun. Now you can use all the wasted space where your app would be if it didn’t crash to display the error that made it crash. You should use this in development only.

Will this catch errors for me?

No. As you can see above, this is only a UI component for rendering errors and their stack traces. It's works great with other solutions, that automate the error catching for you, see the examples.

Optional props

editorScheme[?string] If a filename in the stack trace is local, the component can create the link to open your editor using this scheme eg: subl to create subl://open?url=file:///filename.

useLines[boolean=true] Line numbers in the stack trace may be unreliable depending on the type of sourcemaps. You can choose to not display them with this flag.

useColumns[boolean=true] Column numbers in the stack trace may be unreliable depending on the type of sourcemaps. You can choose to not display them with this flag.

style[?object] Allows you to override the styles used when rendering the various parts of the component. It will be shallow-merged with the default styles.

If using react-transform-catch-errors you can add these options to your .babelrc through the imports property.

Sourcemaps with Webpack

If using Webpack you can get accurate filenames in the stacktrace by setting the output.devtoolModuleFilenameTemplate settings to /[absolute-resource-path].

It's recommended to set devtool setting to 'eval'.

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A redbox (rsod) component to display your errors.

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, '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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Repository files navigation

redbox-react

Build Status

The red box (aka red screen of death) renders an error in this “pretty” format:

red screen of death

Usage

Catch an error and give it to redbox-react. Works with

or manually:

constRedBox=require('redbox-react')conste=newError('boom')constbox=<RedBoxerror={e}/>

Here is a more useful, full-fleged example:

/* global __DEV__ */importReactfrom'react'import{render}from'react-dom'importAppfrom'./components/App'constroot=document.getElementById('root')if(__DEV__){constRedBox=require('redbox-react')try{render(<App/>,root)}catch(e){render(<RedBoxerror={e}/>,root)}}else{render(<App/>,root)}

What is this good for?

An error that's only in the console is only half the fun. Now you can use all the wasted space where your app would be if it didn’t crash to display the error that made it crash. You should use this in development only.

Will this catch errors for me?

No. As you can see above, this is only a UI component for rendering errors and their stack traces. It's works great with other solutions, that automate the error catching for you, see the examples.

Optional props

editorScheme[?string] If a filename in the stack trace is local, the component can create the link to open your editor using this scheme eg: subl to create subl://open?url=file:///filename.

useLines[boolean=true] Line numbers in the stack trace may be unreliable depending on the type of sourcemaps. You can choose to not display them with this flag.

useColumns[boolean=true] Column numbers in the stack trace may be unreliable depending on the type of sourcemaps. You can choose to not display them with this flag.

style[?object] Allows you to override the styles used when rendering the various parts of the component. It will be shallow-merged with the default styles.

If using react-transform-catch-errors you can add these options to your .babelrc through the imports property.

Sourcemaps with Webpack

If using Webpack you can get accurate filenames in the stacktrace by setting the output.devtoolModuleFilenameTemplate settings to /[absolute-resource-path].

It's recommended to set devtool setting to 'eval'.

About

A redbox (rsod) component to display your errors.

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, '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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redbox-react

Build Status

The red box (aka red screen of death) renders an error in this “pretty” format:

red screen of death

Usage

Catch an error and give it to redbox-react. Works with

or manually:

constRedBox=require('redbox-react')conste=newError('boom')constbox=<RedBoxerror={e}/>

Here is a more useful, full-fleged example:

/* global __DEV__ */importReactfrom'react'import{render}from'react-dom'importAppfrom'./components/App'constroot=document.getElementById('root')if(__DEV__){constRedBox=require('redbox-react')try{render(<App/>,root)}catch(e){render(<RedBoxerror={e}/>,root)}}else{render(<App/>,root)}

What is this good for?

An error that's only in the console is only half the fun. Now you can use all the wasted space where your app would be if it didn’t crash to display the error that made it crash. You should use this in development only.

Will this catch errors for me?

No. As you can see above, this is only a UI component for rendering errors and their stack traces. It's works great with other solutions, that automate the error catching for you, see the examples.

Optional props

editorScheme[?string] If a filename in the stack trace is local, the component can create the link to open your editor using this scheme eg: subl to create subl://open?url=file:///filename.

useLines[boolean=true] Line numbers in the stack trace may be unreliable depending on the type of sourcemaps. You can choose to not display them with this flag.

useColumns[boolean=true] Column numbers in the stack trace may be unreliable depending on the type of sourcemaps. You can choose to not display them with this flag.

style[?object] Allows you to override the styles used when rendering the various parts of the component. It will be shallow-merged with the default styles.

If using react-transform-catch-errors you can add these options to your .babelrc through the imports property.

Sourcemaps with Webpack

If using Webpack you can get accurate filenames in the stacktrace by setting the output.devtoolModuleFilenameTemplate settings to /[absolute-resource-path].

It's recommended to set devtool setting to 'eval'.

About

A redbox (rsod) component to display your errors.

Resources

Code of conduct

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0 stars

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0 watching

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, '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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redbox-react

Build Status

The red box (aka red screen of death) renders an error in this “pretty” format:

red screen of death

Usage

Catch an error and give it to redbox-react. Works with

or manually:

constRedBox=require('redbox-react')conste=newError('boom')constbox=<RedBoxerror={e}/>

Here is a more useful, full-fleged example:

/* global __DEV__ */importReactfrom'react'import{render}from'react-dom'importAppfrom'./components/App'constroot=document.getElementById('root')if(__DEV__){constRedBox=require('redbox-react')try{render(<App/>,root)}catch(e){render(<RedBoxerror={e}/>,root)}}else{render(<App/>,root)}

What is this good for?

An error that's only in the console is only half the fun. Now you can use all the wasted space where your app would be if it didn’t crash to display the error that made it crash. You should use this in development only.

Will this catch errors for me?

No. As you can see above, this is only a UI component for rendering errors and their stack traces. It's works great with other solutions, that automate the error catching for you, see the examples.

Optional props

editorScheme[?string] If a filename in the stack trace is local, the component can create the link to open your editor using this scheme eg: subl to create subl://open?url=file:///filename.

useLines[boolean=true] Line numbers in the stack trace may be unreliable depending on the type of sourcemaps. You can choose to not display them with this flag.

useColumns[boolean=true] Column numbers in the stack trace may be unreliable depending on the type of sourcemaps. You can choose to not display them with this flag.

style[?object] Allows you to override the styles used when rendering the various parts of the component. It will be shallow-merged with the default styles.

If using react-transform-catch-errors you can add these options to your .babelrc through the imports property.

Sourcemaps with Webpack

If using Webpack you can get accurate filenames in the stacktrace by setting the output.devtoolModuleFilenameTemplate settings to /[absolute-resource-path].

It's recommended to set devtool setting to 'eval'.

About

A redbox (rsod) component to display your errors.

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, '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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redbox-react

Build Status

The red box (aka red screen of death) renders an error in this “pretty” format:

red screen of death

Usage

Catch an error and give it to redbox-react. Works with

or manually:

constRedBox=require('redbox-react')conste=newError('boom')constbox=<RedBoxerror={e}/>

Here is a more useful, full-fleged example:

/* global __DEV__ */importReactfrom'react'import{render}from'react-dom'importAppfrom'./components/App'constroot=document.getElementById('root')if(__DEV__){constRedBox=require('redbox-react')try{render(<App/>,root)}catch(e){render(<RedBoxerror={e}/>,root)}}else{render(<App/>,root)}

What is this good for?

An error that's only in the console is only half the fun. Now you can use all the wasted space where your app would be if it didn’t crash to display the error that made it crash. You should use this in development only.

Will this catch errors for me?

No. As you can see above, this is only a UI component for rendering errors and their stack traces. It's works great with other solutions, that automate the error catching for you, see the examples.

Optional props

editorScheme[?string] If a filename in the stack trace is local, the component can create the link to open your editor using this scheme eg: subl to create subl://open?url=file:///filename.

useLines[boolean=true] Line numbers in the stack trace may be unreliable depending on the type of sourcemaps. You can choose to not display them with this flag.

useColumns[boolean=true] Column numbers in the stack trace may be unreliable depending on the type of sourcemaps. You can choose to not display them with this flag.

style[?object] Allows you to override the styles used when rendering the various parts of the component. It will be shallow-merged with the default styles.

If using react-transform-catch-errors you can add these options to your .babelrc through the imports property.

Sourcemaps with Webpack

If using Webpack you can get accurate filenames in the stacktrace by setting the output.devtoolModuleFilenameTemplate settings to /[absolute-resource-path].

It's recommended to set devtool setting to 'eval'.

About

A redbox (rsod) component to display your errors.

Resources

Code of conduct

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, '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('^' + ".*" + '
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redbox-react

Build Status

The red box (aka red screen of death) renders an error in this “pretty” format:

red screen of death

Usage

Catch an error and give it to redbox-react. Works with

or manually:

constRedBox=require('redbox-react')conste=newError('boom')constbox=<RedBoxerror={e}/>

Here is a more useful, full-fleged example:

/* global __DEV__ */importReactfrom'react'import{render}from'react-dom'importAppfrom'./components/App'constroot=document.getElementById('root')if(__DEV__){constRedBox=require('redbox-react')try{render(<App/>,root)}catch(e){render(<RedBoxerror={e}/>,root)}}else{render(<App/>,root)}

What is this good for?

An error that's only in the console is only half the fun. Now you can use all the wasted space where your app would be if it didn’t crash to display the error that made it crash. You should use this in development only.

Will this catch errors for me?

No. As you can see above, this is only a UI component for rendering errors and their stack traces. It's works great with other solutions, that automate the error catching for you, see the examples.

Optional props

editorScheme[?string] If a filename in the stack trace is local, the component can create the link to open your editor using this scheme eg: subl to create subl://open?url=file:///filename.

useLines[boolean=true] Line numbers in the stack trace may be unreliable depending on the type of sourcemaps. You can choose to not display them with this flag.

useColumns[boolean=true] Column numbers in the stack trace may be unreliable depending on the type of sourcemaps. You can choose to not display them with this flag.

style[?object] Allows you to override the styles used when rendering the various parts of the component. It will be shallow-merged with the default styles.

If using react-transform-catch-errors you can add these options to your .babelrc through the imports property.

Sourcemaps with Webpack

If using Webpack you can get accurate filenames in the stacktrace by setting the output.devtoolModuleFilenameTemplate settings to /[absolute-resource-path].

It's recommended to set devtool setting to 'eval'.

About

A redbox (rsod) component to display your errors.

Resources

Code of conduct

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0 stars

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0 watching

Forks

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, '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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redbox-react

Build Status

The red box (aka red screen of death) renders an error in this “pretty” format:

red screen of death

Usage

Catch an error and give it to redbox-react. Works with

or manually:

constRedBox=require('redbox-react')conste=newError('boom')constbox=<RedBoxerror={e}/>

Here is a more useful, full-fleged example:

/* global __DEV__ */importReactfrom'react'import{render}from'react-dom'importAppfrom'./components/App'constroot=document.getElementById('root')if(__DEV__){constRedBox=require('redbox-react')try{render(<App/>,root)}catch(e){render(<RedBoxerror={e}/>,root)}}else{render(<App/>,root)}

What is this good for?

An error that's only in the console is only half the fun. Now you can use all the wasted space where your app would be if it didn’t crash to display the error that made it crash. You should use this in development only.

Will this catch errors for me?

No. As you can see above, this is only a UI component for rendering errors and their stack traces. It's works great with other solutions, that automate the error catching for you, see the examples.

Optional props

editorScheme[?string] If a filename in the stack trace is local, the component can create the link to open your editor using this scheme eg: subl to create subl://open?url=file:///filename.

useLines[boolean=true] Line numbers in the stack trace may be unreliable depending on the type of sourcemaps. You can choose to not display them with this flag.

useColumns[boolean=true] Column numbers in the stack trace may be unreliable depending on the type of sourcemaps. You can choose to not display them with this flag.

style[?object] Allows you to override the styles used when rendering the various parts of the component. It will be shallow-merged with the default styles.

If using react-transform-catch-errors you can add these options to your .babelrc through the imports property.

Sourcemaps with Webpack

If using Webpack you can get accurate filenames in the stacktrace by setting the output.devtoolModuleFilenameTemplate settings to /[absolute-resource-path].

It's recommended to set devtool setting to 'eval'.

About

A redbox (rsod) component to display your errors.

Resources

Code of conduct

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0 stars

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0 watching

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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redbox-react

Build Status

The red box (aka red screen of death) renders an error in this “pretty” format:

red screen of death

Usage

Catch an error and give it to redbox-react. Works with

or manually:

constRedBox=require('redbox-react')conste=newError('boom')constbox=<RedBoxerror={e}/>

Here is a more useful, full-fleged example:

/* global __DEV__ */importReactfrom'react'import{render}from'react-dom'importAppfrom'./components/App'constroot=document.getElementById('root')if(__DEV__){constRedBox=require('redbox-react')try{render(<App/>,root)}catch(e){render(<RedBoxerror={e}/>,root)}}else{render(<App/>,root)}

What is this good for?

An error that's only in the console is only half the fun. Now you can use all the wasted space where your app would be if it didn’t crash to display the error that made it crash. You should use this in development only.

Will this catch errors for me?

No. As you can see above, this is only a UI component for rendering errors and their stack traces. It's works great with other solutions, that automate the error catching for you, see the examples.

Optional props

editorScheme[?string] If a filename in the stack trace is local, the component can create the link to open your editor using this scheme eg: subl to create subl://open?url=file:///filename.

useLines[boolean=true] Line numbers in the stack trace may be unreliable depending on the type of sourcemaps. You can choose to not display them with this flag.

useColumns[boolean=true] Column numbers in the stack trace may be unreliable depending on the type of sourcemaps. You can choose to not display them with this flag.

style[?object] Allows you to override the styles used when rendering the various parts of the component. It will be shallow-merged with the default styles.

If using react-transform-catch-errors you can add these options to your .babelrc through the imports property.

Sourcemaps with Webpack

If using Webpack you can get accurate filenames in the stacktrace by setting the output.devtoolModuleFilenameTemplate settings to /[absolute-resource-path].

It's recommended to set devtool setting to 'eval'.

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A redbox (rsod) component to display your errors.

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