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Aurelia Binding
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| <template> | |
| <require from="comp"></require> | |
| <p> | |
| <comp items.two-way="items"></comp> | |
| </p> | |
| </template> |
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| export class App { | |
| items = []; | |
| } |
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| <template> | |
| <p show.bind="!editableItems || editableItems.length === 0"> | |
| No items | |
| </p> | |
| <ul> | |
| <li repeat.for="item of editableItems"> | |
| ${ item.text } <button click.delegate="removeItem(item, $index)"> x </button> | |
| </li> | |
| </ul> | |
| <button click.delegate="addItem()"> | |
| Add Item | |
| </button> | |
| </template> |
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| import {bindable, inject} from "aurelia-framework"; | |
| import {BindingEngine} from 'aurelia-binding'; | |
| @inject( BindingEngine ) | |
| export class Comp { | |
| @bindable items = []; | |
| constructor( bindingEngine ) { | |
| this.bindingEngine = bindingEngine; | |
| this.subscriptions = []; | |
| } | |
| bind() { | |
| this.editableItems = this.items.map( item => { | |
| return { | |
| text: item | |
| } | |
| }); | |
| } | |
| attched() { | |
| this.subscriptions.push( | |
| this.bindingEngine.collectionObserver( this.editableItems ).subscribe( () => { | |
| this.updateOriginalArray(); | |
| }) | |
| ); | |
| } | |
| detached() { | |
| this.subscriptions.forEach( sub => { | |
| sub.dispose(); | |
| }); | |
| } | |
| removeItem(item, index) { | |
| this.editableItems.splice( index, 1 ); | |
| } | |
| addItem() { | |
| this.editableItems.push({ | |
| text: `Item ${this.editableItems.length}` | |
| }); | |
| } | |
| updateOriginalArray() { | |
| this.items = this.editableItems.map( item => { | |
| return item.text; | |
| }); | |
| } | |
| } | |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <title>Aurelia</title> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| <style> | |
| child { | |
| padding: 0 10px ; | |
| border: 1px solid black; | |
| } | |
| </style> | |
| </head> | |
| <body aurelia-app> | |
| <h1>Loading...</h1> | |
| <script src="https://jdanyow.github.io/rjs-bundle/node_modules/requirejs/require.js"></script> | |
| <script src="https://jdanyow.github.io/rjs-bundle/config.js"></script> | |
| <script src="https://jdanyow.github.io/rjs-bundle/bundles/aurelia.js"></script> | |
| <script src="https://jdanyow.github.io/rjs-bundle/bundles/babel.js"></script> | |
| <script> | |
| require(['aurelia-bootstrapper']); | |
| </script> | |
| </body> | |
| </html> |
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