首页 > 解决方案 > 在 Angular 中使用 google-diff-match-patch

问题描述

我想google diff/match/patch lib在一个角度应用程序中使用 来显示两个文本之间的区别。

我的用法是这样的:

public ContentHtml: SafeHtml;
compare(text1: string, text2: string):void {
        var dmp = new diff_match_patch();

        dmp.Diff_Timeout = 1;
        dmp.Diff_EditCost = 4;

        var d = dmp.diff_main(text1, text2);
        dmp.diff_cleanupSemantic(d);
        var ds = dmp.diff_prettyHtml(d);

        this.ContentHtml = this._sanitizer.bypassSecurityTrustHtml(ds);
}

问题是,我如何导入diff_match_patch这条线?
var dmp = new diff_match_patch();

标签: javascriptangulartypescriptgoogle-diff-match-patch

解决方案


您需要在package.json.

"diff-match-patch": "^1.0.5",

并在组件中导入:

import { Component } from '@angular/core';
import DiffMatchPatch from 'diff-match-patch';
@Component({
  selector: 'my-app',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  name = 'Angular';

  getDiff() {
    var dmp = new DiffMatchPatch();
    var diff = dmp.diff_main('Hello', 'Hallo');
    // Result: [(-1, "Hell"), (1, "G"), (0, "o"), (1, "odbye"), (0, " World.")]
    dmp.diff_cleanupSemantic(diff);
    // Result: [(-1, "Hello"), (1, "Goodbye"), (0, " World.")]
    console.log(diff);
  }

}

这是一个演示代码


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