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Ensure _.isPlainObject returns false for objects without a [[Class]] of "Object".

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Former-commit-id: ce034f55733cd1929f09bf80e4a461c6e1502d1b
This commit is contained in:
John-David Dalton
2013-03-10 04:13:34 -07:00
parent 40f9eeda36
commit f9b5d6644d
6 changed files with 31 additions and 16 deletions
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6
lodash.js
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@@ -1016,7 +1016,7 @@
function shimIsPlainObject(value) {
// avoid non-objects and false positives for `arguments` objects
var result = false;
if (!(value && typeof value == 'object') || isArguments(value)) {
if (!(value && toString.call(value) == objectClass) || (!support.argsClass && isArguments(value))) {
return result;
}
// check that the constructor is `Object` (i.e. `Object instanceof Object`)
@@ -1849,14 +1849,14 @@
* // => true
*/
var isPlainObject = !getPrototypeOf ? shimIsPlainObject : function(value) {
if (!(value && typeof value == 'object')) {
if (!(value && toString.call(value) == objectClass) || (!support.argsClass && isArguments(value))) {
return false;
}
var valueOf = value.valueOf,
objProto = typeof valueOf == 'function' && (objProto = getPrototypeOf(valueOf)) && getPrototypeOf(objProto);
return objProto
? value == objProto || (getPrototypeOf(value) == objProto && !isArguments(value))
? (value == objProto || getPrototypeOf(value) == objProto)
: shimIsPlainObject(value);
};