16
我真的很喜欢在C#中使用“for循环”的foreach
构造。我认为它非常干净,高效和可读。类似于C#实现的TypeScript中是否存在foreach结构?
TypeScript中是否有类似的构造?例如,而不是这样的:
setAuthorFilters(selectedAuthors)
{
selectedAuthors.forEach(x => this.setAuthorFilter(x));
this.updateUrl();
}
setAuthorFilter(selectedAuthor)
{
this.vm.SelectAuthors = this.vm.SelectAuthors.filter(x => x.id !== selectedAuthor.id);
this.vm.PreviousSelectedAuthors = this.vm.CurrentSelectedAuthors.slice();
this.vm.CurrentSelectedAuthors.push(selectedAuthor);
}
我想做到这一点:
setAuthorFilters(selectedAuthors)
{
foreach(var selectedAuthor in selectedAuthors)
{
this.vm.SelectAuthors = this.vm.SelectAuthors.filter(x => x.id !== selectedAuthor.id);
this.vm.PreviousSelectedAuthors = this.vm.CurrentSelectedAuthors.slice();
this.vm.CurrentSelectedAuthors.push(selectedAuthor);
}
this.updateUrl();
}
请注意''.. .. .. ..'可以与JS [Iterables](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols#The_iterable_protocol)一起使用,而ES6之前的翻译将不会与这些工作一起工作。 – Kroltan
@Kroltan还值得注意的是,编译器有一个'downlevelIteration'选项,即使在ES3环境中也支持。 – Gerrit0