本文整理汇总了TypeScript中@angular/core/src/linker/query_list.QueryList类的典型用法代码示例。如果您正苦于以下问题：TypeScript QueryList类的具体用法？TypeScript QueryList怎么用？TypeScript QueryList使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了QueryList类的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: describe
describe('QueryList', () => {
let queryList: QueryList<string>;
let log: string;
beforeEach(() => {
queryList = new QueryList<string>();
log = '';
});
function logAppend(item: any /** TODO #9100 */) { log += (log.length == 0 ? '' : ', ') + item; }
it('should support resetting and iterating over the new objects', () => {
queryList.reset(['one']);
queryList.reset(['two']);
iterateListLike(queryList, logAppend);
expect(log).toEqual('two');
});
it('should support length', () => {
queryList.reset(['one', 'two']);
expect(queryList.length).toEqual(2);
});
it('should support map', () => {
queryList.reset(['one', 'two']);
expect(queryList.map((x) => x)).toEqual(['one', 'two']);
});
it('should support map with index', () => {
queryList.reset(['one', 'two']);
expect(queryList.map((x, i) => `${x}_${i}`)).toEqual(['one_0', 'two_1']);
});
it('should support forEach', () => {
queryList.reset(['one', 'two']);
let join = '';
queryList.forEach((x) => join = join + x);
expect(join).toEqual('onetwo');
});
it('should support forEach with index', () => {
queryList.reset(['one', 'two']);
let join = '';
queryList.forEach((x, i) => join = join + x + i);
expect(join).toEqual('one0two1');
});
it('should support filter', () => {
queryList.reset(['one', 'two']);
expect(queryList.filter((x: string) => x == 'one')).toEqual(['one']);
});
it('should support filter with index', () => {
queryList.reset(['one', 'two']);
expect(queryList.filter((x: string, i: number) => i == 0)).toEqual(['one']);
});
it('should support find', () => {
queryList.reset(['one', 'two']);
expect(queryList.find((x: string) => x == 'two')).toEqual('two');
});
it('should support find with index', () => {
queryList.reset(['one', 'two']);
expect(queryList.find((x: string, i: number) => i == 1)).toEqual('two');
});
it('should support reduce', () => {
queryList.reset(['one', 'two']);
expect(queryList.reduce((a: string, x: string) => a + x, 'start:')).toEqual('start:onetwo');
});
it('should support reduce with index', () => {
queryList.reset(['one', 'two']);
expect(queryList.reduce((a: string, x: string, i: number) => a + x + i, 'start:'))
.toEqual('start:one0two1');
});
it('should support toArray', () => {
queryList.reset(['one', 'two']);
expect(queryList.reduce((a: string, x: string) => a + x, 'start:')).toEqual('start:onetwo');
});
it('should support toArray', () => {
queryList.reset(['one', 'two']);
expect(queryList.toArray()).toEqual(['one', 'two']);
});
it('should support toString', () => {
queryList.reset(['one', 'two']);
const listString = queryList.toString();
expect(listString.indexOf('one') != -1).toBeTruthy();
expect(listString.indexOf('two') != -1).toBeTruthy();
});
it('should support first and last', () => {
queryList.reset(['one', 'two', 'three']);
expect(queryList.first).toEqual('one');
expect(queryList.last).toEqual('three');
});
//.........这里部分代码省略.........
示例2: it
it('should support forEach with index', () => {
queryList.reset(['one', 'two']);
let join = '';
queryList.forEach((x, i) => join = join + x + i);
expect(join).toEqual('one0two1');
});示例3: it
it('should support toArray', () => {
queryList.reset(['one', 'two']);
expect(queryList.toArray()).toEqual(['one', 'two']);
});