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feat(core): Add QueryList#forEach

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laco0416 2016-01-08 15:34:25 +09:00 committed by Matias Niemela
parent c1a0af514f
commit b634a25ae0
2 changed files with 12 additions and 0 deletions
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5
modules/angular2/src/core/linker/query_list.ts
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@ -51,6 +51,11 @@ export class QueryList<T> {
*/ */
reduce<U>(fn: (acc: U, item: T) => U, init: U): U { return this._results.reduce(fn, init); } reduce<U>(fn: (acc: U, item: T) => U, init: U): U { return this._results.reduce(fn, init); }
/**
* executes function for each element in a query.
*/
forEach(fn: (item: T) => void): void { this._results.forEach(fn); }
/** /**
* converts QueryList into an array * converts QueryList into an array
*/ */

7
modules/angular2/test/core/linker/query_list_spec.ts
View File

@ -50,6 +50,13 @@ export function main() {
expect(queryList.map((x) => x)).toEqual(['one', 'two']); expect(queryList.map((x) => x)).toEqual(['one', 'two']);
}); });
it('should support forEach', () => {
queryList.reset(['one', 'two']);
let join = '';
queryList.forEach((x) => join = join + x);
expect(join).toEqual('onetwo');
});
if (!IS_DART) { if (!IS_DART) {
it('should support filter', () => { it('should support filter', () => {
queryList.reset(['one', 'two']); queryList.reset(['one', 'two']);