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Diffstat (limited to 'js/vendor/jquery/src/core.js')
| -rw-r--r-- | js/vendor/jquery/src/core.js | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/js/vendor/jquery/src/core.js b/js/vendor/jquery/src/core.js index f27306587..713c1a3cd 100644 --- a/js/vendor/jquery/src/core.js +++ b/js/vendor/jquery/src/core.js @@ -223,6 +223,7 @@ jQuery.extend( { }, isPlainObject: function( obj ) { + var key; // Not plain objects: // - Any object or value whose internal [[Class]] property is not "[object Object]" @@ -232,14 +233,18 @@ jQuery.extend( { return false; } + // Not own constructor property must be Object if ( obj.constructor && - !hasOwn.call( obj.constructor.prototype, "isPrototypeOf" ) ) { + !hasOwn.call( obj, "constructor" ) && + !hasOwn.call( obj.constructor.prototype || {}, "isPrototypeOf" ) ) { return false; } - // If the function hasn't returned already, we're confident that - // |obj| is a plain object, created by {} or constructed with new Object - return true; + // Own properties are enumerated firstly, so to speed up, + // if last one is own, then all properties are own + for ( key in obj ) {} + + return key === undefined || hasOwn.call( obj, key ); }, isEmptyObject: function( obj ) { |