在Angular 2中的条件下调用函数 [英] Call function on condition in Angular 2
本文介绍了在Angular 2中的条件下调用函数的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有这样的模板
<div class="action" *ngFor="let action of (actions | async)">
<div
class="collapsible action-table-row"
[attr.aria-expanded]="actionCollapse.isActive()"
[class.collapse-table-row]="actionCollapse.isActive()"
(click)="openActionCollapse(actionCollapse)"
>
如果条件满足,我想调用一个函数
I want to call a function if condition satisfied, something like this
<div class="action" *ngFor="let action of (actions | async)">
<div
class="collapsible action-table-row"
[attr.aria-expanded]="actionCollapse.isActive()"
[class.collapse-table-row]="actionCollapse.isActive()"
(click)="openActionCollapse(actionCollapse)"
(action.value=="")="callfunction()" //<---- here
>
我如何实现这一目标.
推荐答案
<div class="action" *ngFor="let action of (actions | async)">
<div
class="collapsible action-table-row"
[attr.aria-expanded]="actionCollapse.isActive()"
[class.collapse-table-row]="actionCollapse.isActive()"
(click)="openActionCollapse(actionCollapse)">
{{ action.value=="something" ? callfunction() : '' }} //<---- here
</div>
推荐方式:
<div class="action" *ngFor="let action of (actions | async)">
<div
class="collapsible action-table-row"
[attr.aria-expanded]="actionCollapse.isActive()"
[class.collapse-table-row]="actionCollapse.isActive()"
(click)="openActionCollapse(actionCollapse)">
{{ action.value=="something" ? someVar : '' }} //<---- here
</div>
constructor(){
this.someVar=this.callfunction();
}
callfunction()
{
return "something";
}
这篇关于在Angular 2中的条件下调用函数的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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