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Utils updated.

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This commit is contained in:
Onoshko Dan 2014-04-20 01:42:58 +07:00
parent 81679176a4
commit 9f024d3a3d
1 changed files with 29 additions and 43 deletions
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72
lib/utils.js
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@ -303,52 +303,38 @@ Cola.Dictionary.prototype = {
}; };
Cola.clone = function (item) { Cola.clone = function (item) {
if (!item) { return item; } // null, undefined values check if (item === undefined || item === null) return item;
var types = [ Number, String, Boolean ], var result, types = [ Number, String, Boolean ];
result;
// normalizing primitives if someone did new String('aaa'), or new Number('444'); for (var i in types)
types.forEach(function(type) { if(types.hasOwnProperty(i) && item instanceof types[i])
if (item instanceof type) { return type( item );
result = type( item );
}
});
if (typeof result == "undefined") { if (item.__proto__ === Array.prototype) {
if (Object.prototype.toString.call( item ) === "[object Array]") { result = [];
result = []; item.forEach(function(child, index, array) {
item.forEach(function(child, index, array) { result[index] = Cola.clone( child );
result[index] = Cola.clone( child ); });
});
} else if (typeof item == "object") { return result;
// testing that this is DOM
if (item.nodeType && typeof item.cloneNode == "function") {
var result = item.cloneNode( true );
} else if (!item.prototype) { // check that this is a literal
if (item instanceof Date) {
result = new Date(item);
} else {
// it is an object literal
result = {};
for (var i in item) {
result[i] = Cola.clone( item[i] );
}
}
} else {
// depending what you would like here,
// just keep the reference, or create new object
if (false && item.constructor) {
// would not advice to do that, reason? Read below
result = new item.constructor();
} else {
result = item;
}
}
} else {
result = item;
}
} }
return result; if (!(item instanceof Object)) return item;
if (item.nodeType && item.cloneNode instanceof Function) return item.cloneNode( true );
if (!item.prototype) {
if (item instanceof Date) return new Date(item);
if (item instanceof Function) return item;
if (item.clone instanceof Function) return item.clone();
result = {};
for (var i in item) result[i] = Cola.clone( item[i] );
result.__proto__ = item.__proto__;
return result;
}
return item;
}; };