如何返回带参数的上一页? [英] How to return to previous page with parameters?

问题描述

我想使用一些参数返回上一页.任何建议，我该怎么做?

I want to return to previous page with some parameters. Any suggestion how can i do that?

import {Location} from '@angular/common';
   returnToPreviousPage(){
        this._location.back();
    }

所以我想要的是这样的东西:

So what i want is something like this :

this._location.back(id:123);

当我返回页面时显示如下内容: www.test.com?d=123

And when i back on page to have something like this : www.test.com?d=123

推荐答案

在这里，如果您使用 this._location.back()返回，则只能将索引传递给此函数.您想从浏览器历史记录中返回多少索引.

Here if you are using the this._location.back() to go back you can pass only the index to this function. How much index you want to go back from browser history.

例如返回2个索引

this._location.back(2);

示例以返回queryParams

this.router.navigate(['/test2', { id: 12321313}]);

检查 @angular \ common.js

class Location {
     /* Navigates back in the platform's history.*/
     /* @return {?} */

    back() { this._platformStrategy.back(); }
 }

InShort您正在尝试的事情 this._location.back(2)的工作方式与window.history.back();相同.并仅接受要从浏览器历史记录中返回的索引值

InShort the thing what you are trying this._location.back(2) work same as window.history.back(); and accept only the index value you want to go back from browser history

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