typescript 从 *ngIf Angular 5 调用函数
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Call a function from an *ngIf Angular 5
提问by Smokey Dawson
Say I have this code here
说我在这里有这个代码
<div *ngIf="item">lorem ipsum</div>
Is there a way I can call a function if that *ngIf evaluates to true??
如果 *ngIf 评估为真，有没有办法调用函数？
you know something like this..
你知道这样的事情..
<div *ngIf="(item) : callFunction() ? ...">lorem ipsum</div>
any help would be appreciated!
任何帮助，将不胜感激！
Thanks
谢谢
回答by Julius Dzidzevi?ius
Angular way would be:
角度方式将是：
<div *ngIf="name; then func(); else false">;</div>
<div *ngIf="name; then func(); else false">;</div>
But as *ngIfevaluates passed in logical expression, you can also do:
但是当*ngIf评估在逻辑表达式中传递时，您还可以执行以下操作：
<div *ngIf="name?func():false">;</div>
<div *ngIf="name?func():false">;</div>
回答by brk
Try like this
像这样尝试
<div *ngIf="item ===true?callFunction():'otherStuff'">lorem ipsum</div>
回答by Abinesh Joyel
You can try like this
你可以这样试试
Html
html
<div *ngIf="item; then callfunction; else nofunction"></div>
<ng-template #callfunction>
{{call()}}
</ng-template>
<ng-template #nofunction>
<!-- something else -->
</ng-template>
Ts
Ts
call(){
}
If you got better solution than this please post that to
如果您有比这更好的解决方案，请将其发布到
