本文整理汇总了TypeScript中@angular/core/src/change_detection/differs/default_iterable_differ.DefaultIterableDiffer类的典型用法代码示例。如果您正苦于以下问题：TypeScript DefaultIterableDiffer类的具体用法？TypeScript DefaultIterableDiffer怎么用？TypeScript DefaultIterableDiffer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DefaultIterableDiffer类的2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: DefaultIterableDiffer
() => {
differ = new DefaultIterableDiffer((index: number) => index);
const startData = [1, 2, 3, 4];
const endData = [5, 6, 7, 8];
differ = differ.diff(startData) !;
differ = differ.diff(endData) !;
const operations: string[] = [];
differ.forEachOperation((item: any, prev: number, next: number) => {
const value = modifyArrayUsingOperation(startData, endData, prev, next);
operations.push(stringifyItemChange(item, prev, next, item.previousIndex));
});
expect(operations).toEqual([]);
});示例2: it
it('should treat null as an empty list', () => {
differ.diff(['a', 'b']);
expect(iterableDifferToString(differ.diff(null !) !)).toEqual(iterableChangesAsString({
previous: ['a[0->null]', 'b[1->null]'],
removals: ['a[0->null]', 'b[1->null]']
}));
});