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fix(isElement): return boolean value rather than truthy value.

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angular.isElement currently returns a truthy object/function, or false. This
patch aims to correct this behaviour by casting the result of the isElement
expression to a boolean value via double-negation.

Closes #4519
Closes #4534
This commit is contained in:
Caitlin Potter
2013-10-19 15:41:06 -04:00
committed by Igor Minar
parent 785a5fd7c1
commit 2dbb6f9a54
2 changed files with 15 additions and 2 deletions
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4
src/Angular.js
View File

@@ -565,9 +565,9 @@ var trim = (function() {
* @returns {boolean} True if `value` is a DOM element (or wrapped jQuery element).
*/
function isElement(node) {
return node &&
return !!(node &&
(node.nodeName // we are a direct element
|| (node.on && node.find)); // we have an on and find method part of jQuery API
|| (node.on && node.find))); // we have an on and find method part of jQuery API
}
/**

13
test/AngularSpec.js
View File

@@ -1079,4 +1079,17 @@ describe('angular', function() {
}
});
describe('isElement', function() {
it('should return a boolean value', inject(function($compile, $document, $rootScope) {
var element = $compile('<p>Hello, world!</p>')($rootScope),
body = $document.find('body')[0],
expected = [false, false, false, false, false, false, false, true, true],
tests = [null, undefined, "string", 1001, {}, 0, false, body, element];
angular.forEach(tests, function(value, idx) {
var result = angular.isElement(value);
expect(typeof result).toEqual('boolean');
expect(result).toEqual(expected[idx]);
});
}));
});
});