ngClass中的多个类 [英] Multiple classes in ngClass

问题描述

我正在尝试在* ngClass中添加多个值，该值曾经在以前的alpha版本中可用，而现在似乎在angular2 beta中不起作用:

I'm trying to add multiple values in *ngClass, what used to work on previous alpha releases and doesn't seem to work now on angular2 beta:

<i *ngClass="['fa','fa-star']"></i>

它产生一个错误:

例外:TypeError:无法读取未定义的属性添加" [['fa'，'fa-star'] in PostView @ 30:27]

EXCEPTION: TypeError: Cannot read property 'add' of undefined in [['fa','fa-star'] in PostView@30:27]

我在这里想念什么?

推荐答案

您应使用方括号创建属性绑定.参见此小品

You should use square brackets to create property binding. See this plunk

<i [ngClass]="['fa','fa-star']"></i>

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