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map / forEach use native impl, if available. ace2_common extends the prototype of Array, if not

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This commit is contained in:
Matthias Bartelmeß 2012-03-13 21:10:10 +01:00
parent cccd8a923c
commit b28bfe8e31
4 changed files with 44 additions and 60 deletions
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42
src/static/js/ace2_common.js
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@ -29,8 +29,7 @@ function isNodeText(node)
function object(o)
{
var f = function()
{};
var f = function(){};
f.prototype = o;
return new f();
}
@ -44,37 +43,32 @@ function extend(obj, props)
return obj;
}
function forEach(array, func)
{
for (var i = 0; i < array.length; i++)
var forEachImpl = function(fn){
for (var i = 0; i < this.length; i++)
{
var result = func(array[i], i);
if (result) break;
var result = func(this[i], i, this);
}
}
function map(array, func)
function mapImpl(fn)
{
var result = [];
// must remain compatible with "arguments" pseudo-array
for (var i = 0; i < array.length; i++)
for (var i = 0; i < this.length; i++)
{
if (func) result.push(func(array[i], i));
else result.push(array[i]);
if (fn) result.push(fn(this[i], i, this));
else result.push(this[i]);
}
return result;
}
function filter(array, func)
{
var result = [];
// must remain compatible with "arguments" pseudo-array
for (var i = 0; i < array.length; i++)
{
if (func(array[i], i)) result.push(array[i]);
}
return result;
}
Array.prototype.forEach = Array.prototype.forEach || forEachImpl;
Array.prototype.each = Array.prototype.each || forEachImpl;
Array.prototype.map = Array.prototype.map || mapImpl;
function isArray(testObject)
{
@ -147,9 +141,6 @@ var identity = function(x){return x};
exports.isNodeText = isNodeText;
exports.object = object;
exports.extend = extend;
exports.forEach = forEach;
exports.map = map;
exports.filter = filter;
exports.isArray = isArray;
exports.browser = browser;
exports.getAssoc = getAssoc;
@ -157,6 +148,5 @@ exports.setAssoc = setAssoc;
exports.binarySearch = binarySearch;
exports.binarySearchInfinite = binarySearchInfinite;
exports.htmlPrettyEscape = htmlPrettyEscape;
exports.map = map;
exports.noop = noop;
exports.identity = identity;