我收到错误:
EXCEPTION:模板解析错误: 无法绑定到'ilike',因为它不是一个已知的本地财产(“ ] [ILIKE] = “tweet.iLike” > “):AppComponent @ 1:42
import {Component, Input} from 'angular2/core';
@Component({
selector: 'like',
template: `
<i
class="glyphicon glyphicon-heart"
[class.highlighted]="iLike"
(click)="onClick()">
</i>
<span>{{ totalLikes }}</span>
`,
styles: [`
.glyphicon-heart {
color: #ccc;
cursor: pointer;
}
.highlighted {
color: deeppink;
}
`]
})
export class LikeComponent {
@Input() totalLikes = 0;
@Input() iLike = false;
onClick(){
this.iLike = !this.iLike;
this.totalLikes += this.iLike ? 1 : -1;
}
}
上面的代码是我的 like.component.ts 文件,其中我有一颗心,当它舔时它会变紫并且 totalLikes值< / strong>增加1,当用户再次点击时,它会转换回灰色,值减1。
import {Component} from 'angular2/core'; // this is component decorator
import {LikeComponent} from './like.component'
@Component({
selector: 'my-app',
template: `
<like [totalLikes]="tweet.totalLikes" [ilike]="tweet.iLike">
</like>
`,
directives: [LikeComponent]
})
export class AppComponent {
tweet={
totalLikes: 10,
iLike: false
}
}
以上是我的喜欢.component.ts
答案 0 :(得分:1)
有两个小问题,
(i)您尚未在app.module.ts中导入 LikeComponent
(ii)iLike中存在拼写错误,应该是,
template: `
<like [totalLikes]="tweet.totalLikes" [iLike]="tweet.iLike">
</like>
`,
<强> WORKING STACKBLITZ 强>