我正在使用管道显示feathericons,其中包含以下代码:
import {DomSanitizer} from '@angular/platform-browser';
import {Pipe, PipeTransform} from '@angular/core';
import { icons } from 'feather-icons'; // v4+
@Pipe({ name: 'feather' })
export class FeatherIconsPipe implements PipeTransform {
constructor(private sanitizer: DomSanitizer) {}
transform(icon: string, size: number = 18, color: string = 'inherit', float: string = 'inline-end') {
return this.sanitizer.bypassSecurityTrustHtml(icons[icon].toSvg({
width: size,
height: size,
color: color,
float: float
}));
}
}
如您所见,它使用DomSanitizer。我使用这样的HTML管道:
<span [innerHTML]="'home' | feather"></span>
工作正常。但是现在我需要通过打字稿来做同样的事情。我试过了:
const span = this._renderer2.createElement('span');
let name = new FeatherIconsPipe().transform('home');
this._renderer2.setProperty(span, 'innerHTML', name);
但是它会引发错误:
期望1个参数,但得到0.ts(2554) feather-pipe.ts(9,15):未提供“消毒剂”的参数。
然后我尝试了
private sanitizer : DomSanitizer = this.sanitizer;
...
let name = new FeatherIconsPipe(this.sanitizer).transform('home');
但是管道输出:
无法读取未定义的属性'bypassSecurityTrustHtml'。
如何使用打字稿通过管道设置innerHTML?
答案 0 :(得分:3)
需要将sanitizer
注入组件中的构造函数
constructor(private _renderer2: Renderer2, private sanitizer: DomSanitizer){
new FeatherIconsPipe(this.sanitizer).transform('home');