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Embeer.js EmberArray isAny()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。

isAny() 方法用于检查数组中的任何一项是否具有所需的值。

用法:

isAny( key, value );

参数：

  • key：这是我们要检查的属性名称。
  • value：这是要测试的值。默认值是true。

返回：如果对于数组中的任何一项，传递的属性解析为所需的值，则为 true。

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

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 isAny1

应用程序/路线/isAny1.js


import Route from '@ember/routing/route'; 
  
export default class DetailsRoute 
    extends Route { 
    details = [ 
        { 
            name: 'Aaksh', 
            mobile: '9811129967', 
            city: 'Delhi', 
            country: 'India', 
            gender: 'M', 
            zipCode: '800020', 
        }, 
        { 
            name: 'Sweta', 
            mobile: '9456712890', 
            city: 'Mumbai', 
            country: 'India', 
            gender: 'F', 
            zipCode: '400001', 
        }, 
        { 
            name: 'Satyam', 
            mobile: '2222222222', 
            city: 'Raipur', 
            country: 'India', 
            gender: 'M', 
            zipCode: '110012', 
        }, 
        { 
            name: 'Shandya', 
            mobile: '1122113322', 
            city: 'Bangalore', 
            country: 'India', 
            gender: 'F', 
            zipCode: '530068', 
        }, 
        { 
            name: 'Ayushi', 
            mobile: '2244668800', 
            city: 'Thana', 
            country: 'India', 
            gender: 'F', 
            zipCode: '302001', 
        }, 
    ]; 
    someMoreDetails = [ 
        { 
            name: 'Yogesh', 
            mobile: '1133557799', 
            city: 'Chennai', 
            country: 'India', 
            gender: 'F', 
            zipCode: '600001', 
        }, 
        { 
            name: 'Sunny', 
            mobile: '9911000000', 
            city: 'Masore', 
            country: 'India', 
            gender: 'M', 
            zipCode: '574142', 
        }, 
        { 
            name: 'Khushi', 
            mobile: '8888888888', 
            city: 'Pune', 
            country: 'India', 
            gender: 'F', 
            zipCode: '111045', 
        }, 
    ]; 
    city; 
    name; 
    code; 
    model() { 
        return this.details; 
    } 
    setupController(controller, model) { 
        super.setupController(controller, model); 
        controller.set('details', this.details); 
        controller.set('someMoreDetails', 
            this.someMoreDetails); 
        controller.set('city', this.city); 
        controller.set('code', this.code); 
        controller.set('name', this.name); 
    } 
}

应用程序/控制器/isAny1.js


import Ember from 'ember'; 
import { addObjects, shiftObject, setEach } 
    from '@ember/array'; 
  
export default Ember.Controller.extend({ 
    actions: { 
        checkCity(city) { 
            this.details.isAny('city', city) ? 
                alert(`Yes Person from ${city} is present`) : 
                alert(`List does not contains person  
      from city`); 
        }, 
        checkName(name) { 
            this.details.isAny('name', name) ? 
                alert(`Yes Person of Name ${name} is  
      present`) : 
                alert(`List does not contains person  
      of given Name`); 
        }, 
        checkCode(code) { 
            this.details.isAny('zipCode', code) ? 
                alert(`Yes List contains Person with zipCode 
       ${code}`) : 
                alert(`List does not contains person  
       from provided data`); 
        }, 
    }, 
});

应用程序/模板/isAny1.hbs


{{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 Someone from City" 
        {{action 'checkCity' this.city}} /> 
</div> 
<br /><br /> 
<div> 
    <label>Enter zipCode: </label> 
    {{input value=this.code}} 
</div> 
<div> 
    <input type="button" id="check-code" 
        value="Check Someone from Zip-Code" 
        {{action 'checkCode' this.code}} /> 
</div><br /><br /> 
<div> 
    <label>Enter Name: </label> 
    {{input value=this.name}} 
</div> 
<div> 
    <input type="button" id="check-name" 
        value="Check Someone by Name" 
        {{action 'checkName' this.name}} /> 
</div> 
{{outlet}}

输出：访问 localhost:4200/isAny1 查看输出

Ember.js EmberArray isAny 方法

示例 2：键入以下代码以生成本示例的路由：

ember generate route isAny2

应用程序/路线/isAny2.js


import Route from '@ember/routing/route'; 
import { } from '@ember/array'; 
  
export default class FruitsRoute 
    extends Route { 
    item1 = [ 
        { 
            name: 'Apple', 
            isFruit: true, 
            color: 'red', 
        }, 
        { 
            name: 'Grapes', 
            isFruit: true, 
            color: 'green', 
        }, 
        { 
            name: 'Mango', 
            isFruit: true, 
            color: 'yellow', 
        }, 
        { 
            name: 'Watermelon', 
            isFruit: true, 
            color: 'red', 
        }, 
        { 
            name: 'Orange', 
            isFruit: true, 
            color: 'orange', 
        }, 
    ]; 
    item2 = [ 
        { 
            name: 'Lady Finger', 
            isFruit: false, 
            color: 'green', 
        }, 
        { 
            name: 'Brinjal', 
            isFruit: false, 
            color: 'purple', 
        }, 
        { 
            name: 'Potato', 
            isFruit: false, 
            color: 'brown', 
        }, 
        { 
            name: 'Onion', 
            isFruit: false, 
            color: 'violet', 
        }, 
    ]; 
    model() { 
        return this.item1; 
    } 
    setupController(controller, model) { 
        super.setupController(controller, model); 
        controller.set('item1', this.item1); 
        controller.set('item2', this.item2); 
    } 
}

应用程序/控制器/isAny2.js


import Ember from 'ember'; 
import { pushObjects, isAny } from '@ember/array'; 
  
export default Ember.Controller.extend({ 
    actions: { 
        Check_item() { 
            let ans = this.item1.isAny('isFruit', true); 
            ans ? alert(`Yes it contains Fruit`) 
                : alert(`It doesn't contains any Fruit`) 
        }, 
        Check_item2() { 
            let ans = this.item1.isAny('isFruit', false); 
            ans ? alert(`Yes it contains Vegatabe`) : 
                alert(`It doesn't contains any Vegetable`) 
        }, 
        pushMoreDetails() { 
            this.item1.pushObjects(this.item2); 
        }, 
    }, 
});

应用程序/模板/isAny2.hbs


{{page-title "Fruits"}} 
<table style=" border-spacing : 30px"> 
    <h3>Here is a Bucket: </h3> 
    <ul> 
        {{#each @model as |eatable|}} 
        <li>{{eatable.name}}</li> 
        {{/each}} 
    </ul> 
</table> 
<br /><br /> 
<input type="button" id="fruit-all" 
    value="List Contains Any Fruit?" 
    {{action 'Check_item' }} /> 
<br /><br /> 
<input type="button" id="fruit-notAll" 
    value="List Contains Any Vegetables?" 
    {{action 'Check_item2' }} /> 
  
<br /><br /> 
<input type="button" id="push-details" 
    value="Add More Details" 
    {{action 'pushMoreDetails' }} /> 
{{outlet}}

输出：访问 localhost:4200/isAny2 查看输出

Ember.js EmberArray isAny 方法

参考：https://api.emberjs.com/ember/4.6/classes/EmberArray/methods/isAny?anchor=isAny



相关用法


注：本文由纯净天空筛选整理自satyam00so大神的英文原创作品 Ember.js EmberArray isAny() 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。