Embeer.js MutableArray pushObjects()用法及代碼示例

Ember.js 是一個開源 JavaScript 框架，用於開發基於 Model-View-Controller (MVC) 架構的大型客戶端 Web 應用程序。 Ember.js是使用最廣泛的前端應用框架之一。它的目的是加速開發並提高生產力。目前，它被大量網站使用，包括 Square、Discourse、Groupon、Linked In、Live Nation、Twitch 和 Chipotle。

pushObjects() 方法用於將多個對象推送到數組中。

用法:

pushObjects(obj)

參數：

obj (Object): 要推動的對象。

返回：該方法返回一個對象。

要運行以下示例，您需要有一個 ember 項目。要創建一個，您需要先安裝ember-cli。在終端中寫入以下代碼：

npm install ember-cli

現在您可以通過輸入以下代碼來創建項目：

ember new <project-name> --lang en

要啟動服務器，請鍵入：

ember serve

示例 1：鍵入以下代碼以生成本示例的路由：

ember generate route details

應用程序/路線/details.js


import Route from '@ember/routing/route'; 
  
export default class DetailsRoute extends Route { 
    details = [ 
        { 
            'name': 'Anubhav', 
            'mobile': '1298119967', 
            'city': 'Patna', 
            'country': 'India', 
            'gender': 'M', 
            'zipCode': '800020'
        }, 
        { 
            'name': 'Sakshi', 
            'mobile': '1234567890', 
            'city': 'Mumbai', 
            'country': 'India', 
            'gender': 'F', 
            'zipCode': '400001'
        }, 
        { 
            'name': 'Satyam', 
            'mobile': '2222222222', 
            'city': 'Delhi', 
            'country': 'India', 
            'gender': 'M', 
            'zipCode': '110012'
        }, 
        { 
            'name': 'Shivam', 
            'mobile': '1122113322', 
            'city': 'Bangalore', 
            'country': 'India', 
            'gender': 'M', 
            'zipCode': '530068'
        }, 
        { 
            'name': 'Ayushi', 
            'mobile': '2244668800', 
            'city': 'Jaipur', 
            'country': 'India', 
            'gender': 'F', 
            'zipCode': '302001'
        } 
    ]; 
    someMoreDetails = [ 
        { 
            'name': 'Yeshwant', 
            'mobile': '1133557799', 
            'city': 'Chennai', 
            'country': 'India', 
            'gender': 'M', 
            'zipCode': '600001'
        }, 
        { 
            'name': 'Siddhant', 
            'mobile': '9911000000', 
            'city': 'Mangalore', 
            'country': 'India', 
            'gender': 'M', 
            'zipCode': '574142'
        }, 
        { 
            'name': 'Khushi', 
            'mobile': '8888888888', 
            'city': 'Pune', 
            'country': 'India', 
            'gender': 'F', 
            'zipCode': '111045'
        } 
    ]; 
    city; 
    code; 
    model() { 
        return this.details; 
    } 
    setupController(controller, model) { 
        this._super(controller, model); 
        controller.set('details', this.details); 
        controller.set('someMoreDetails', this.someMoreDetails); 
        controller.set('city', this.city); 
        controller.set('code', this.code); 
    } 
}

應用程序/控製器/details.js


import Ember from 'ember'; 
import { pushObjects, shiftObject, setEach } from '@ember/array'; 
  
export default Ember.Controller.extend({ 
    actions: { 
        checkCity(city) { 
            alert(`Contains Person from ${city}: 
            ${this.details.isAny('city', city)?'Yes':'No'}`); 
        }, 
        checkCountry() { 
            alert(`All are  
            ${this.details.isEvery('country', 'India')?'':'not'}  
            Indian`); 
        }, 
        remove(){ 
            this.details.shiftObject(); 
        }, 
        setZipCode(code){ 
            this.details.setEach('zipCode', code); 
        }, 
        pushMoreDetails(){ 
            this.details.pushObjects(this.someMoreDetails); 
        } 
    }, 
});

應用程序/模板/details.js


{{page-title "Details"}} 
<h3>List of People: </h3> 
<br/><br/> 
<table> 
    <tr> 
        <th>Name</th> 
        <th>Gender</th> 
        <th>Mobile</th> 
        <th>City</th> 
        <th>Country</th> 
        <th>Zip Code</th> 
    </tr> 
    {{#each @model as |detail|}} 
    <tr> 
        <td>{{detail.name}}</td> 
        <td>{{detail.gender}}</td> 
        <td>{{detail.mobile}}</td> 
        <td>{{detail.city}}</td> 
        <td>{{detail.country}}</td> 
        <td>{{detail.zipCode}}</td> 
    </tr> 
    {{/each}} 
</table> 
  
<br/><br/> 
<div> 
    <label>Enter City: </label> 
    {{input value=this.city}} 
</div> 
<div> 
    <input type="button" id="check-city" 
        value="Check City" {{action 'checkCity' this.city}}/> 
</div> 
<br/><br/> 
<div> 
    <label>Enter Code: </label> 
    {{input value=this.code}} 
</div> 
<div> 
    <input type="button" id="set-code" 
        value="Set Zip Code"
       {{action 'setZipCode' this.code}}/> 
</div> 
<br/><br/> 
<input type="button" id="remove-detail" 
       value="Remove"
       {{action 'remove'}}/> 
<br/><br/> 
<input type="button" id="push-details" 
       value="Add More Details"
       {{action 'pushMoreDetails'}}/> 
<br/><br/> 
<input type="button" id="check-country"
       value="All Indian?"
       {{action 'checkCountry'}}/> 
{{outlet}}

輸出：訪問 localhost:4200/details 查看輸出

示例 2：鍵入以下代碼以生成本示例的路由：

ember generate route websites

應用程序/路線/websites.js


import Route from '@ember/routing/route'; 
  
export default class WebsitesRoute extends Route { 
    websites=[ 
        { 
            'name': 'Wikipedia', 
            'link': 'www.wikipedia.com'
        }, 
        { 
            'name': 'Facebook', 
            'link': 'www.facebook.com'
        }, 
        { 
            'name': 'Google', 
            'link': 'www.google.com'
        }, 
        { 
            'name': 'Twitter', 
            'link': 'www.twitter.com'
        } 
    ]; 
    moreWebsites = [ 
        { 
            'name': 'Instagram', 
            'link': 'www.instagram.com'
        }, 
        { 
            'name': 'Amazon', 
            'link': 'www.amazon.com'
        } 
    ] 
    model() { 
        return this.websites; 
    } 
    setupController(controller, model) { 
        this._super(controller, model); 
        controller.set('websites', this.websites); 
        controller.set('moreWebsites', this.moreWebsites); 
    } 
}

應用程序/控製器/websites.js


import Ember from 'ember'; 
import { pushObjects, setEach } from '@ember/array'; 
  
export default Ember.Controller.extend({ 
    actions: { 
        set(){ 
            this.websites.setEach('name', 'GeeksforGeeks'); 
            this.websites.setEach('link', 'www.geeksforgeeks.org'); 
        }, 
        add(){ 
            this.websites.pushObjects(this.moreWebsites); 
        } 
    }, 
});

應用程序/模板/websites.js


{{page-title "Websites"}} 
<h3>Websites</h3> 
<br /><br /> 
<table> 
    <tr> 
        <th>Name</th> 
        <th>Website Link</th> 
    </tr> 
    {{#each @model as |website|}} 
    <tr> 
        <td>{{website.name}}</td> 
        <td>{{website.link}}</td> 
    </tr> 
    {{/each}} 
</table> 
<br /><br /> 
<input type="button" id="add-website" 
       value="More Websites" 
       {{action 'add' }} /> 
<br /><br /> 
<input type="button" id="set-website" 
       value="Click Here" {{action 'set' }} /> 
{{outlet}}

輸出：訪問 localhost:4200/websites 查看輸出

參考： https://api.emberjs.com/ember/4.4/classes/MutableArray/methods?anchor=pushObject

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注：本文由純淨天空篩選整理自aayushmohansinha大神的英文原創作品 Ember.js MutableArray pushObjects() Method。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。