Ember.js ArrayProxy replaceContent() Method
Ember.js is an open-source JavaScript framework used for developing large client-side web applications which is based on Model-View-Controller (MVC) architecture. Ember.js is one of the most widely used front-end application frameworks. It is made to speed up development and increase productivity. Currently, it is utilized by a large number of websites, including Square, Discourse, Groupon, Linked In, Live Nation, Twitch, and Chipotle.
The replaceContent() Method of ArrayProxy is a method that is used to replace the specified objects on the content array. This method is only called if the content is not null.
Syntax:
this.object.repaceContent( idx, amt, objects );
Parameters:
- idx: It is the starting index from which content replacing starts.
- amt: It is the amount till where content will be replaced.
- objects: It is the object which is placed in place.
Return type: The return type of this method is void.
Steps to Install and Run Ember.js:
Step 1: To run the following examples you will need to have an ember project with you. To create one, you will need to install ember-cli first. Write the below code in the terminal:
npm install ember-cli
Step 2: Now you can create the project by typing in the following piece of code:
ember new <project-name> --lang en
To start the server, type:
ember serve
Example 1: Type the following code to generate the route for this example:
ember generate route temp1
app/routes/temp1.js
Javascript
import Route from '@ember/routing/route' ;
import { A } from '@ember/array' ;
import ArrayProxy from '@ember/array/proxy' ;
export default class List2Route extends Route {
list = ArrayProxy.create({
content: A([
'Oxygen' ,
'Source Code' ,
'Infine' ,
'Tenet' ,
'SpiderHead' ,
'The Thing' ,
'A Quiet Place' ,
'The Invisible Man' ,
'Looper' ,
'Ad Astra' ,
])
});
model() {
return this .list;
}
setupController(controller, model) {
super .setupController(controller, model);
controller.set( 'list' , this .list);
}
}
|
app/controllers/temp1.js
Javascript
import Controller from '@ember/controller' ;
import { action } from '@ember/object' ;
export default class List2Controller extends Controller {
@action
rotate(data) {
let temp = this .list.content;
this .list.replaceContent(0, temp.length, temp.reverse());
}
}
|
app/templates/temp1.hbs
HTML
{{page-title "ArrayProxy"}}
< h3 >Here is a list of Movies: </ h3 >
< table >
{{#each @model as |item|}}
< tr >
< td >
< li >{{item}}</ li >
</ td >
</ tr >
{{/each}}
</ table >
< br />
< br />
< div >
< input type = "button" id = "rotate-item"
value = "Rotate the Array" {{action "rotate" }} />
</ div >
{{outlet}}
|
Output:
replaceContent output1
Example 2: Type the following code to generate the route for this example:
ember generate route temp2
app/routes/temp2.js
Javascript
import Route from '@ember/routing/route' ;
import { A } from '@ember/array' ;
import ArrayProxy from '@ember/array/proxy' ;
export default class List2Route extends Route {
list = ArrayProxy.create({
content: A([
'python' ,
'javascript' ,
'java' ,
'Php' ,
'Angular' ,
'c++' ,
'Django' ,
'c' ,
])
});
model() {
return this .list;
}
setupController(controller, model) {
super .setupController(controller, model);
controller.set( 'list' , this .list);
}
}
|
app/controllers/temp2.js
Javascript
import Controller from '@ember/controller' ;
import { action } from '@ember/object' ;
export default class List2Controller extends Controller {
list2 = [
'SQL' ,
'Go' ,
'c#' ,
'Kotlin' ,
'R' ,
'Swift' ,
'Rust' ,
'Ruby' ,
]
@action
show(data) {
this .list.replaceContent(0, data, this .list2.slice(0, data));
}
}
|
app/templates/temp2.hbs
HTML
{{page-title "ArrayProxy"}}
< h3 >Here is a list of languages: </ h3 >
< table >
{{#each @model as |item|}}
< tr >
< li >{{item}}</ li >
</ tr >
{{/each}}
</ table >
< br />
< div >
< label >Enter Index: </ label >
{{input value=this.item3}}
</ div >
< br />
< div >
< input type = "button" id = "change-item"
value = "Change till index" {{action "show" this.item3}} />
</ div >
{{outlet}}
|
Output:
replaceContent output2
Reference: https://api.emberjs.com/ember/4.9/classes/ArrayProxy/methods/replaceContent?anchor=replaceContent
Last Updated :
05 Jan, 2023
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