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[Utility & Helpers](/categories/utility) 4. / 5. bchecketts/js-beautify ActiveLibrary[Utility & Helpers](/categories/utility) bchecketts/js-beautify ====================== fork of einars/js-beautify for use with composer 028.8kJavaScript Since Dec 2Pushed 12y agoCompare [ Source](https://github.com/bchecketts/js-beautify)[ Packagist](https://packagist.org/packages/bchecketts/js-beautify)[ RSS](/packages/bchecketts-js-beautify/feed)WikiDiscussions master Synced 3d ago READMEChangelogDependenciesVersions (1)Used By (0) JS Beautifier ============= [](#js-beautifier) [![Build Status](https://camo.githubusercontent.com/d93c629d3e11af934a6cb7a4a1a4464ccaae05cc75f327deea609cfeeb9e91dc/68747470733a2f2f7365637572652e7472617669732d63692e6f72672f65696e6172732f6a732d62656175746966792e706e673f6272616e63683d6d6173746572)](http://travis-ci.org/einars/js-beautify)[![NPM version](https://camo.githubusercontent.com/43aec3d503b633934db7d67eb8a0dcc1a86e8da91f876596114ccb20adb63308/68747470733a2f2f62616467652e667572792e696f2f6a732f6a732d62656175746966792e706e67)](http://badge.fury.io/js/js-beautify) This little beautifier will reformat and reindent bookmarklets, ugly JavaScript, unpack scripts packed by Dean Edward’s popular packer, as well as deobfuscate scripts processed by [javascriptobfuscator.com](http://javascriptobfuscator.com/). Usage ===== [](#usage) You can beautify javascript using JS Beautifier in your web browser, or on the command-line using node.js or python. Web Browser ----------- [](#web-browser) Open [jsbeautifier.org](http://jsbeautifier.org/). Options are available via the UI. Python ------ [](#python) To beautify using python: ``` $ pip install jsbeautifier $ js-beautify file.js ``` Beautified output goes to `stdout`. To use `jsbeautifier` as a library is simple: ``` import jsbeautifier res = jsbeautifier.beautify('your javascript string') res = jsbeautifier.beautify_file('some_file.js') ``` ...or, to specify some options: ``` opts = jsbeautifier.default_options() opts.indent_size = 2 res = jsbeautifier.beautify('some javascript', opts) ``` JavaScript ---------- [](#javascript) As an alternative to the Python script, you may install the NPM package `js-beautify`. When installed globally, it provides an executable `js-beautify` script. As with the Python script, the beautified result is sent to `stdout` unless otherwise configured. ``` $ npm -g install js-beautify $ js-beautify foo.js ``` You can also use `js-beautify` as a `node` library (install locally, the `npm` default): ``` $ npm install js-beautify ``` ``` var beautify = require('js-beautify').js_beautify, fs = require('fs'); fs.readFile('foo.js', 'utf8', function (err, data) { if (err) { throw err; } console.log(beautify(data, { indent_size: 2 })); }); ``` Options ------- [](#options) These are the command-line flags for both Python and JS scripts: ``` CLI Options: -f, --file Input file(s) (Pass '-' for stdin) -r, --replace Write output in-place, replacing input -o, --outfile Write output to file (default stdout) --config Path to config file --type [js|css|html] ["js"] -q, --quiet Suppress logging to stdout -h, --help Show this help -v, --version Show the version Beautifier Options: -s, --indent-size Indentation size [4] -c, --indent-char Indentation character [" "] -l, --indent-level Initial indentation level [0] -t, --indent-with-tabs Indent with tabs, overrides -s and -c -p, --preserve-newlines Preserve line-breaks (--no-preserve-newlines disables) -m, --max-preserve-newlines Number of line-breaks to be preserved in one chunk [10] -P, --space-in-paren Add padding spaces within paren, ie. f( a, b ) -j, --jslint-happy Enable jslint-stricter mode -b, --brace-style [collapse|expand|end-expand] ["collapse"] -B, --break-chained-methods Break chained method calls across subsequent lines -k, --keep-array-indentation Preserve array indentation -x, --unescape-strings Decode printable characters encoded in xNN notation -w, --wrap-line-length Wrap lines at next opportunity after N characters [0] -X, --e4x Pass E4X xml literals through untouched --good-stuff Warm the cockles of Crockford's heart ``` These largely correspond to the underscored option keys for both library interfaces, which have these defaults: ``` { "indent_size": 4, "indent_char": " ", "indent_level": 0, "indent_with_tabs": false, "preserve_newlines": true, "max_preserve_newlines": 10, "jslint_happy": false, "brace_style": "collapse", "keep_array_indentation": false, "keep_function_indentation": false, "space_before_conditional": true, "break_chained_methods": false, "eval_code": false, "unescape_strings": false, "wrap_line_length": 0 } ``` In addition to CLI arguments, you may pass config to the JS executable via: - any `jsbeautify_`-prefixed environment variables - a `JSON`-formatted file indicated by the `--config` parameter - a `.jsbeautifyrc` file containing `JSON` data at any level of the filesystem above `$PWD` Configuration sources provided earlier in this stack will override later ones. You might notice that the CLI options and defaults hash aren't 100% correlated. Historically, the Python and JS APIs have not been 100% identical. For example, `space_before_conditional` is currently JS-only, and not addressable from the CLI script. There are a few other additional cases keeping us from 100% API-compatibility. Patches welcome! ### CSS & HTML [](#css--html) In addition to the `js-beautify` executable, `css-beautify` and `html-beautify` are also provided as an easy interface into those scripts. Alternatively, `js-beautify --css` or `js-beautify --html` will accomplish the same thing, respectively. ``` // Programmatic access var beautify_js = require('js-beautify'); // also available under "js" export var beautify_css = require('js-beautify').css; var beautify_html = require('js-beautify').html; // All methods accept two arguments, the string to be beautified, and an options object. ``` The CSS & HTML beautifiers are much simpler in scope, and possess far fewer options. ``` CSS Beautifier Options: -s, --indent-size Indentation size [4] -c, --indent-char Indentation character [" "] HTML Beautifier Options: -I, --indent-inner-html Indent and sections. Default is false. -s, --indent-size Indentation size [4] -c, --indent-char Indentation character [" "] -b, --brace-style [collapse|expand|end-expand] ["collapse"] -S, --indent-scripts [keep|separate|normal] ["normal"] -w, --wrap-line-length Maximum characters per line (0 disables) [250] -p, --preserve-newlines Preserve existing line-breaks (--no-preserve-newlines disables) -m, --max-preserve-newlines Maximum number of line-breaks to be preserved in one chunk [10] -U, --unformatted List of tags (defaults to inline) that should not be reformatted ``` License ======= [](#license) You are free to use this in any way you want, in case you find this useful or working for you but you must keep the copyright notice and license. (MIT) Credits ======= [](#credits) - Written by Einar Lielmanis, - Python version flourished by Stefano Sanfilippo - General maintenance and expansion by Liam Newman - Command-line for node.js by Daniel Stockman Thanks also to Jason Diamond, Patrick Hof, Nochum Sossonko, Andreas Schneider, Dave Vasilevsky, Vital Batmanov, Ron Baldwin, Gabriel Harrison, Chris J. Shull, Mathias Bynens, Vittorio Gambaletta and others. js-beautify@1.3.4 ### Health Score 26 — LowBetter than 43% of packages Maintenance20 Infrequent updates — may be unmaintained Popularity20 Limited adoption so far Community19 Small or concentrated contributor base Maturity41 Maturing project, gaining track record Bus Factor2 2 contributors hold 50%+ of commits How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. 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