browser-run

Transform stream that executes JavaScript it receives in a real browser and outputs console output

npm install browser-run
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browser-run

The easiest way of running code in a browser environment.

Usage

$ echo "console.log('Hey there from ' + document.location)" | browser-run
Hey there from http://localhost:53227/

Or use browser-run programmatically:

var run = require('browser-run');

var browser = run();
browser.pipe(process.stdout);
browser.write('console.log(document.location)');
browser.end();

Example with browserify

$ browserify main.js | browser-run

or

var browserify = require('browserify');
var browser = require('browser-run');

browserify('main.js').bundle().pipe(browser()).pipe(process.stdout);

CLI

$ browser-run --help
Run JavaScript in a browser.
Write code to stdin and receive console output on stdout.
Usage: browser-run [OPTIONS]

Options:
  --browser, -b  Browser to use. Available if installed: chrome, firefox, ie, phantom, safari  [default: "phantom"]
  --port, -p     Starts listening on that port and waits for you to open a browser
  --help, -h     Print help

API

run([opts])

Returns a duplex stream and starts a webserver.

opts can be:

  • port: If speficied, no browser will be started, so you can point one yourself to http://localhost/<port>
  • browser: Browser to use. Defaults to phantom. Available if installed:
    • chrome
    • firefox
    • ie
    • phantom
    • safari

run#stop()

Stop the underlying webserver.

Installation

With npm do

$ npm install browser-run    # for library
$ npm install -g browser-run # for cli

License

(MIT)

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