Rainbowed console logs for chrome, opera and firefox in development.
Safe, production happy, colourful logging - makes reading your logs much easier.
(Rain)bows makes logging debug messages in your apps much nicer.
- It allows you to create custom loggers for each module in your app, that prefix all log messages with the name of the app, so that you can scan the messages more easily.
- It colors the prefix differently and distinctly for each logger/module so that it's even easier to read.
- It can be safely used in production, where logging will be disabled by default, so that you can leave log messages in your code.
- Loggers safely wrap console.log, to maintain the line number from where they are called in the console output.
If you are using browserify, you'll want something like:
npm install bows --save
If you use Bower:
bower install bows --save
- Easily create prefixes for your logs, so that you can distinguish between logs from different parts of your app easily.
- If supported, prefixes will be color coded for even easier identification.
- Can be safely used in production, as logs will be disabled for your users, but can be enabled by you with a local storage flag.
- Greppable logs by setting
localStorage.debug = /Foo/to only display logs for modules matching the regex to help you focus in development.
- Works in all reasonable browsers
- Supports colors in chrome, opera, firefox >= 31.0
Works great in browserify and the browser.
Creating a new logger:
var log = require('bows')("My Module Name")
var log = bows("My Module Name")
Then using it is easy:
log("Module loaded") //-> "My Module Name | Module Loaded"
log("Did something") //-> "My Module Name | Did something"
Typically each seperate module/view/etc in your app would create it's own logger. It will be assigned it's own color to make it easy to spot logs from different modules.
You can pass additional arguments to
bowswhich will be automatically prepended to each message, e.g.:var log = bows"My App" "[ChuckNorris]";log"Kicks ass!";//outputs://My App | [ChuckNorris] Kicks ass!
Logging is disabled by default. To enable logging, set
localStorage.debug = truein your console and refresh the page.
You can leave the code in in production, and log() will just safely no-op unless localStorage.debug is set.
//Should be set in your console to see messageslocalStoragedebug = true//Configure the max length of module names (optional)bowsconfig padLength: 10var logger1 = bows'Module 1'var logger2 = bows'Module 2'var logger3 = bows'Module 3'logger1"We started up"logger2"We did something too"logger3"I'm here"logger3"I'm still here"logger2"I'm tired"logger1"We're done here"
This project uses
phantomjs for tests. To run the tests install the development dependencies and then run:
Add a file in
test, refer to enabled.html/disabled.html, then add the script to the array in test/index.js.
With contributions from:
Please feel free to raise issues, or make contributions:
git clonecd bowsnpm install #install dependencies#edit bows.jsnpm testnpm run build.js #build dist/bows.js and dist/bows.min.js, also done by `npm test`