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Added new method for Object class, Object #isObject #289

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Added new method for Object class, Object #isObject #289

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20 changes: 20 additions & 0 deletions src/prototype/lang/object.js
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,7 @@
NUMBER_TYPE = 'Number',
STRING_TYPE = 'String',
OBJECT_TYPE = 'Object',
OBJECT_CLASS = '[object Object]';
FUNCTION_CLASS = '[object Function]',
BOOLEAN_CLASS = '[object Boolean]',
NUMBER_CLASS = '[object Number]',
Expand Down Expand Up @@ -486,6 +487,24 @@
return object instanceof Hash;
}

/**
* Object.isObject(object) -> Boolean
* - object (Object): The object to test.
*
* Returns `true` if `object` is of type [[Object]]; `false` otherwise.
*
* ##### Examples
*
* Object.isObject({});
* //-> true
*
* Object.isObject('str');
* //-> false
**/
function isObject(object) {
return _toString.call(object) === OBJECT_CLASS;
}

/**
* Object.isFunction(object) -> Boolean
* - object (Object): The object to test.
Expand Down Expand Up @@ -603,6 +622,7 @@
keys: Object.keys || keys,
values: values,
clone: clone,
isObject: isObject,
isElement: isElement,
isArray: isArray,
isHash: isHash,
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13 changes: 13 additions & 0 deletions test/unit/tests/object.test.js
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Expand Up @@ -143,6 +143,19 @@ suite('Object', function () {
assert.strictEqual(false, Object.isElement(undefined));
});

test('.isObject', function () {
assert(Object.isObject({}));
assert(Object.isObject(new Object()));

assert(!Object.isObject("a string"));
assert(!Object.isObject($(document.createElement('div'))));
assert(!Object.isObject([]));
assert(!Object.isObject(0));
assert(!Object.isObject(false));
assert(!Object.isObject(undefined));
assert(!Object.isObject(/xyz/));
});

test('.isFunction', function () {
assert(Object.isFunction(function() { }));
assert(Object.isFunction(Class.create()));
Expand Down