我正在使用Angular 2和Immutable JS,但我似乎无法在我的模板中使用简单的for循环.真的很令人沮丧.我尝试了以下旧语法(基于教程)
<div *ngFor='#filter of filterArray' class='filter-row'> <div class='row-title'>{{filter.get(title)}}</div> </div>
和新的语法
<div *ngFor=' let filter of filterArray' class='filter-row'> <div class='row-title'>{{filter.get(title)}}</div> </div>
我尝试使用和不使用.get语法为花括号内的不可变映射,我只是无法让它工作..
filterArray看起来像:
this.filterArray = fromJS([{ title: 'Brand',},{ title: 'Category' },{ title: 'Each UPC' }]);
我需要使用一些特殊的语法才能使用吗?我的浏览器上没有显示任何内容,使用let语法时没有出现任何错误.
版本:
"@angular/common": "^2.1.0","@angular/compiler": "^2.1.0","@angular/core": "^2.1.0","@angular/forms": "^2.1.0","@angular/http": "^2.1.0","@angular/platform-browser": "^2.1.0","@angular/platform-browser-dynamic": "^2.1.0","@angular/router": "^3.0.1","immutable": "^3.8.1","typescript": "2.0.2"
编辑:以下工作,但它看起来很糟糕
<div *ngFor='let filter of filterArray let i=index' class='filter-row'> <div class='row-title'>{{filterArray.get(i).get('title')}}</div> </div>
解决方法
这对我有用:
<div *ngFor='let filter of filterArray' class='filter-row'> <div class='row-title'>{{filter.get('title')}}</div> </div>