mirror of https://github.com/sveltejs/svelte
parent
240b00dd68
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import * as assert from 'assert';
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export default {
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data: {
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items: [
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{ description: 'one', completed: true },
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{ description: 'two', completed: false },
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{ description: 'three', completed: false }
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]
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},
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html: `<div><input type="checkbox"><p>one</p></div><div><input type="checkbox"><p>two</p></div><div><input type="checkbox"><p>three</p></div><!--#each items-->\n\n<p>1 completed</p>`,
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test ( component, target, window ) {
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const inputs = [ ...target.querySelectorAll( 'input' ) ];
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assert.ok( inputs[0].checked );
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assert.ok( !inputs[1].checked );
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assert.ok( !inputs[2].checked );
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const event = new window.Event( 'change' );
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inputs[1].checked = true;
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inputs[1].dispatchEvent( event );
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assert.equal( component.get( 'numCompleted' ), 2 );
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assert.equal( target.innerHTML, `<div><input type="checkbox"><p>one</p></div><div><input type="checkbox"><p>two</p></div><div><input type="checkbox"><p>three</p></div><!--#each items-->\n\n<p>2 completed</p>` );
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const items = component.get( 'items' );
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items[2].completed = true;
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component.set({ items });
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assert.ok( inputs[2].checked );
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assert.equal( target.innerHTML, `<div><input type="checkbox"><p>one</p></div><div><input type="checkbox"><p>two</p></div><div><input type="checkbox"><p>three</p></div><!--#each items-->\n\n<p>3 completed</p>` );
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}
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};
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@ -0,0 +1,15 @@
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{{#each items as item}}
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<div><input type='checkbox' bind:checked='item.completed'><p>{{item.description}}</p></div>
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{{/each}}
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<p>{{numCompleted}} completed</p>
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<script>
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export default {
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computed: {
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numCompleted ( items ) {
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return items.reduce( ( total, item ) => total + ( item.completed ? 1 : 0 ), 0 );
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}
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}
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};
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</script>
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