forin.js
No OneTemporary
Actions

Size

1 KB

Referenced Files

None

Subscribers

None

forin.js
View Options

	import { test, testDeep, summary } from './helpers.js';

	console.log('For-In Enumeration Tests\n');

	var strPrim = 'abc';
	var strPrimKeys = [];
	for (var k in strPrim) strPrimKeys.push(k);
	testDeep('string primitive for-in keys', strPrimKeys, ['0', '1', '2']);
	test('string primitive length', strPrim.length, 3);

	var strObj = new String('abc');
	var strObjKeys = [];
	for (var k in strObj) strObjKeys.push(k);
	testDeep('String object for-in keys', strObjKeys, ['0', '1', '2']);
	test('String object length', strObj.length, 3);

	var sparse = [];
	sparse[5] = 'hello';
	test('sparse array length', sparse.length, 6);
	var sparseKeys = [];
	for (var k in sparse) sparseKeys.push(k);
	testDeep('sparse array for-in keys', sparseKeys, ['5']);

	var arr = [10, 20, 30];
	var arrKeys = [];
	for (var k in arr) arrKeys.push(k);
	testDeep('array for-in keys', arrKeys, ['0', '1', '2']);

	var obj = { a: 1, b: 2, c: 3 };
	var objKeys = [];
	for (var k in obj) objKeys.push(k);
	testDeep('object for-in keys', objKeys, ['a', 'b', 'c']);

	var arrWithProps = [1, 2];
	arrWithProps.foo = 'bar';
	var arrPropsKeys = [];
	for (var k in arrWithProps) arrPropsKeys.push(k);
	testDeep('array with properties for-in keys', arrPropsKeys, ['0', '1', 'foo']);

	summary();

File Metadata

Mime Type: application/javascript
Expires: Fri, Mar 27, 10:53 AM (2 d)
Storage Engine: blob
Storage Format: Raw Data
Storage Handle: 512581
Default Alt Text: forin.js (1 KB)

Event Timeline