browser-upgrade-lite

Implement EcmaScript 5 methods for older browsers

npm install browser-upgrade-lite
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@version    0.1.8
@date       2014-02-18
@stability  2 - Unstable

Browser upgrade

Implement EcmaScript 5 methods for older browsers.

Contains

  • Functionprototype.bind
  • Object.keys
  • Object.create
  • Array.isArray
  • Array.prototype.indexOf
  • Array.prototype.lastIndexOf
  • Array.prototype.reduce
  • Array.prototype.reduceRight
  • Array.prototype.forEach
  • Array.prototype.every
  • Array.prototype.map
  • Array.prototype.filter
  • Array.prototype.some
  • Date.prototype.toISOString
  • Date.now
  • String.prototype.trim
  • JSON
  • atob/btoa (base64) // Disabled by default

Browser Support

browser support

  • If no !DOCTYPE is specified, IE6-9 renders the page in IE5 mode!
  • document.createDocumentFragment is unsupported in IE5.5
  • IE 5.5 doesn't support the * collection (all elements) in document.getElementByTagName — it returns a collection with zero members
  • instanceof is not implemented in IE 5 MAC
  • Safari 2.0.2: 416 hasOwnProperty introduced October 31, 2005 (Mac OS X v10.4)
    // Polyfill
    Object.prototype.hasOwnProperty = function(name, obj) {
        try {
            obj = this.constructor
            while (obj=obj.prototype) if (obj[name]===this[name]) return false
        } catch(e) {}
        return true
    }
    

Licence

Copyright (c) 2012 Lauri Rooden <lauri@rooden.ee>
The MIT License

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