Embeer.js Service mergedProperties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。

mergedProperties 是有助于将子类属性值与 ember 类的超类属性值合并的属性。

用法:

mergedProperties

Parameters: 它不需要任何参数。

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 demo1

应用程序/路线/demo1.js

Javascript


import Route from '@ember/routing/route';
import EmberObject from '@ember/object';
import ObjectProxy from '@ember/object/proxy';
const Student = EmberObject.extend({
    mergedProperties: ['Id'],
    Id: {
        Aadhar_card: ['1234-5654-2312'],
        School_id: ['12345654'],
    }
});
export default class StudentsRoute extends Route {
    student;
    createStudent() {
        let student = Student.extend({
            name: 'Aarbh Singh',
            gender: 'M',
            class: 11,
            grade: 'A',
            marks: 98,
            Id: {
                School_id: ['55551223'],
            },
        });
        return student.create();
    }
    model() {
        this.student = this.createStudent();
        return this.student.get('mergedProperty');
    }
    setupController(controller, model) {
        super.setupController(controller, model);
        controller.set('student', this.student);
    }
}

应用程序/模板/demo1.html

HTML


{{page-title "mergedProperties"}}
<table>
    <h1>Details:</h1>
    <div><b>Name:</b> {{this.student.name}}</div>
    <div><b>Gender:</b> {{this.student.gender}}</div>
    <div><b>Class:</b> {{this.student.class}}</div>
    <div><b>Grade:</b> {{this.student.grade}}</div>
    <div><b>Marks:</b> {{this.student.marks}}</div>
    <div><b>Id_Cards:</b> </div>
    <table>{{#each-in this.student.Id as |key value|}}
        <li>{{key}}: {{value}}</li>
        {{/each-in}}
    </table>
</table>
{{outlet}}

输出：

合并属性输出1

示例 2：键入以下代码以生成本示例的路由：

ember generate route demo2

应用程序/路线/demo2.js

Javascript


import Route from '@ember/routing/route';
import EmberObject from '@ember/object';
import ObjectProxy from '@ember/object/proxy';
const Employee = ObjectProxy.extend({
    mergedProperties: ['language'],
    language: {
        1: 'Hindi',
    }
});
export default class DetailsRoute extends Route {
    person;
    createPerson() {
        let person = Employee.create({
            name: 'Aman Singh',
            age: 20,
            mobile: '1298119967',
            country: 'India',
            language: ['Bengali'],
            salary: 10000,
            gender: 'M',
            zipCode: '800020',
        });
        return person;
    }
    model() {
        this.person = this.createPerson();
        console.log(this.person)
        return this.person;
    }
    setupController(controller, model) {
        super.setupController(controller, model);
        controller.set('person', this.person);
    }
}

应用程序/模板/demo2.hbs

HTML


{{page-title "mergedProperties"}}
<table>
    <h1>Person</h1>
    <div><b>Name:</b> {{this.person.name}}</div>
    <div><b>Gender:</b> {{this.person.gender}}</div>
    <div><b>Salary:</b> {{this.person.salary}}</div>
    <div><b>Zip Code:</b> {{this.person.zipCode}}</div>
    <div><b>Mobile:</b> {{this.person.mobile}}</div>
    <div><b>Country:</b> {{this.person.country}}</div>
    <div><b>Age:</b> {{this.person.age}}</div>
    <div><b>Language speak:</b>
        {{#each-in this.person.language as |key value|}}
        <li>{{value}}</li>
        {{/each-in}}
    </div>
</table>
{{outlet}}

输出：

合并属性输出2

参考：https://api.emberjs.com/ember/4.6/classes/Service/properties/mergedProperties?anchor=mergedProperties

相关用法

注：本文由纯净天空筛选整理自singhanuj78276大神的英文原创作品 Ember.js Service mergedProperties Property。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。