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Embeer.js HashLocation toString()用法及代码示例


Ember.js 是一个开源 JavaScript 框架，用于开发基于 Model-View-Controller (MVC) 架构的大型客户端 Web 应用程序。 Ember.js是使用最广泛的前端应用框架之一。它的目的是加速开发并提高生产力。目前，它被大量网站使用，包括 Square、Discourse、Groupon、Linked In、Live Nation、Twitch 和 Chipotle。

toString() 方法用于获取对象的字符串表示形式。

用法:

toString()

Parameters: 它不需要任何参数。

返回：对象的字符串表示形式。

安装和运行 Ember.js 的步骤：

第 1 步：要运行以下示例，您需要有一个 ember 项目。要创建一个，您需要先安装ember-cli。在终端中写入以下代码：

npm install ember-cli

第 2 步：现在您可以通过输入以下代码来创建项目：

ember new <project-name> --lang en

要启动服务器，请键入：

ember serve

示例 1：键入以下代码以生成本示例的路由：

ember generate route test1

应用程序/路线/test1.js

Javascript


import Route from '@ember/routing/route';
import EmberObject from '@ember/object';
export default class WebsitesRoute extends Route {
    temp2;
    temp;
    model() {
        return "toString";
    }
    setupController(controller, model) {
        super.setupController(controller, model);
        controller.set('temp', this.temp);
        controller.set('temp2', this.temp2);
    }
}

应用程序/控制器/test1.js

Javascript


import Ember from 'ember';
import EmberObject from '@ember/object';
const Student = EmberObject.extend({
    toStringExtension() {
        return this.get('Name');
    }
});
export default Ember.Controller.extend({
    class: 10,
    age: 15,
    student: [
        Student.create({
            Name: 'Aarbh',
            class: 12,
            age: 18,
        }),
        Student.create({
            Name: 'viky',
            class: 9,
            age: 15,
        }),
        Student.create({
            Name: 'Chiku',
            class: 8,
            age: 11,
        }),
        Student.create({
            Name: 'Nikki',
            class: 11,
            age: 17,
        }),
        Student.create({
            Name: 'Ankit',
            class: 8,
            age: 14,
        }),
        Student.create({
            Name: 'Sonam',
            class: 11,
            age: 17,
        }),
        Student.create({
            Name: 'Ravi',
            class: 10,
            age: 16,
        }),
    ],
    actions: {
        older(data) {
            this.incrementProperty(data);
        },
        younger(data) {
            this.decrementProperty(data);
        },
        addItem(data, data1, data2) {
            let temp = Student.create({
                Name: data,
                class: data1,
                age: data2
            });
            alert(temp.toString() + ' Student Added in list');
            this.student.addObject(temp);
        }
    }
});

应用程序/模板/test1.hbs

HTML


{{page-title "toString"}}
<h3>List of Students:</h3>
<table>
    <tr>
        <th> Name   </th>
        <th>Class  </th>
        <th>Age  </th>
    </tr>
    {{#each this.student as |website|}}
    <tr>
        <td>{{website.Name}}</td>
        <td>{{website.class}}</td>
        <td>{{website.age}}</td>
    </tr>
    {{/each}}
</table>
<br /><br />
<div>
    <label>Enter Student Name: </label>
    {{input value=this.temp2}}
</div>
<br />
<div>
    <label>Enter Age: </label>
    {{input value=this.age}}
</div>
<input type="button" id="increase"
    value="+" {{action 'older' 'age'}}/>
<input type="button" id="decrease"
    value="-" {{action 'younger' 'age'}}/>
<br/>
<br />
<div>
    <label>Enter Class: </label>
    {{input value=this.class}}
</div>
<input type="button" id="increase"
    value="+" {{action 'older' 'class'}}/>
<input type="button" id="decrease"
    value="-" {{action 'younger' 'class'}}/>
<br/>
<br />
<br /><br />
<input type="button" id="all-students"
    value="Add item"
    {{action 'addItem' this.temp2 this.class this.age}} />
{{outlet}}

输出：

字符串输出1

示例 2：键入以下代码以生成本示例的路由：

ember generate route test2

应用程序/路线/test2.js

Javascript


import Route from '@ember/routing/route';
import EmberObject from '@ember/object';
export default class WebsitesRoute extends Route {
    temp;
    model() {
        return 'toString';
    }
    setupController(controller, model) {
        super.setupController(controller, model);
        controller.set('temp', this.temp);
    }
}

应用程序/控制器/test2.js

Javascript


import Ember from 'ember';
import EmberObject from '@ember/object';
const Food = EmberObject.extend({
    toStringExtension() {
        return this.get('food');
    }
});
export default Ember.Controller.extend({
    value: 0,
    food: [
        Food.create({
            food: 'apple',
            isFruit: true,
            quant: '1',
        }),
        Food.create({
            food: 'Potato',
            isFruit: false,
            quant: '2',
        }),
        Food.create({
            food: 'Banana',
            isFruit: true,
            quant: '1',
        }),
        Food.create({
            food: 'Burgur',
            isFruit: false,
            quant: '2',
        }),
        Food.create({
            food: 'Orange',
            isFruit: true,
            quant: '1',
        }),
        Food.create({
            food: 'sandwitch',
            isFruit: false,
            quant: '2',
        }),
        Food.create({
            food: 'bean',
            isFruit: false,
            quant: '2',
        }),
    ],
    actions: {
        older() {
            this.incrementProperty('value');
        },
        younger() {
            this.decrementProperty('value');
        },
        addItem(data, data1, data2) {
            let temp = Food.create({
                food: data,
                isFruit: data1,
                quant: data2
            });
            alert(temp.toString() + ' Created');
            this.food.addObject(temp);
        }
    }
});

应用程序/模板/test2.hbs

HTML


{{page-title 'toString'}}
<h3>List of Item in Buckets</h3>
<table>
  <tr>
    <th> Food Name </th>
    <th>Bucket </th>
    <th>Fruit </th>
  </tr>
  {{#each this.food as |website|}}
    <tr>
      <td>{{website.food}}</td>
      <td>{{website.quant}}</td>
      <td>{{website.isFruit}}</td>
    </tr>
  {{/each}}
</table>
<br /><br />
<div>
  <label>Enter Item Name: </label>
  {{input value=this.temp2}}
</div>
<br />
<div>
  <label>Enter Quantity in Kg: </label>
  {{input value=this.value}}
</div>
<input type='button' id='increase'
       value='+' {{action 'older'}} />
<input type='button' id='decrease'
       value='-' {{action 'younger'}} />
<br />
<br />
<div>
  <label>Item is fruit or not : </label>
  {{input value=this.temp}}
</div>
<br /><br />
<input
  type='button'
  id='all-Fruits'
  value='Add item'
  {{action 'addItem' this.temp2 this.value this.temp}}
/>
{{outlet}}

输出：

字符串输出2

参考：https://api.emberjs.com/ember/4.6/classes/HashLocation/methods/toString?anchor=toString



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注：本文由纯净天空筛选整理自jeemains0neet大神的英文原创作品 Ember.js HashLocation toString() Method。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。