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pull/2179/head
Richard Harris 7 years ago
parent 5563b3781e
commit ddea4fcab7

@ -0,0 +1,52 @@
<script>
let scoops = 1;
let flavours = ['Mint choc chip'];
let menu = [
'Cookies and cream',
'Mint choc chip',
'Raspberry ripple'
];
function join(flavours) {
if (flavours.length === 1) return flavours[0];
return `${flavours.slice(0, -1).join(', ')} and ${flavours[flavours.length - 1]}`;
}
</script>
<h2>Size</h2>
<label>
<input type=radio bind:group={scoops} value={1}>
One scoop
</label>
<label>
<input type=radio bind:group={scoops} value={2}>
Two scoops
</label>
<label>
<input type=radio bind:group={scoops} value={3}>
Three scoops
</label>
<h2>Flavours</h2>
{#each menu as flavour}
<label>
<input type=checkbox bind:group={flavours} value={flavour}>
{flavour}
</label>
{/each}
{#if flavours.length === 0}
<p>Please select at least one flavour</p>
{:else if flavours.length > scoops}
<p>Can't order more flavours than scoops!</p>
{:else}
<p>
You ordered {scoops} {scoops === 1 ? 'scoop' : 'scoops'}
of {join(flavours)}
</p>
{/if}

@ -0,0 +1,53 @@
<script>
let scoops = 1;
let flavours = ['Mint choc chip'];
let menu = [
'Cookies and cream',
'Mint choc chip',
'Raspberry ripple'
];
function join(flavours) {
if (flavours.length === 1) return flavours[0];
return `${flavours.slice(0, -1).join(', ')} and ${flavours[flavours.length - 1]}`;
}
</script>
<h2>Size</h2>
<label>
<input type=radio bind:group={scoops} value={1}>
One scoop
</label>
<label>
<input type=radio bind:group={scoops} value={2}>
Two scoops
</label>
<label>
<input type=radio bind:group={scoops} value={3}>
Three scoops
</label>
<h2>Flavours</h2>
<select multiple bind:value={flavours}>
{#each menu as flavour}
<option value={flavour}>
{flavour}
</option>
{/each}
</select>
{#if flavours.length === 0}
<p>Please select at least one flavour</p>
{:else if flavours.length > scoops}
<p>Can't order more flavours than scoops!</p>
{:else}
<p>
You ordered {scoops} {scoops === 1 ? 'scoop' : 'scoops'}
of {join(flavours)}
</p>
{/if}

@ -0,0 +1,19 @@
---
title: Select multiple
---
A select can have a `multiple` attribute, in which case it will populate an array rather than selecting a single value.
Returning to our [earlier ice cream example](tutorial/group-inputs), we can replace the checkboxes with a `<select multiple>`:
```html
<h2>Flavours</h2>
<select multiple bind:value={flavours}>
{#each menu as flavour}
<option value={flavour}>
{flavour}
</option>
{/each}
</select>
```

@ -0,0 +1,39 @@
<script>
let todos = [
{ done: false, text: 'finish Svelte tutorial' },
{ done: false, text: 'build an app' },
{ done: false, text: 'world domination' }
];
function add() {
todos = todos.concat({ done: false, text: '' });
}
function clear() {
todos = todos.filter(t => !t.done);
}
</script>
<h1>Todos</h1>
{#each todos as todo}
<div>
<input
type=checkbox
bind:checked={todo.done}
>
<input
placeholder="What needs to be done?"
bind:value={todo.text}
>
</div>
{/each}
<button on:click={add}>
Add new
</button>
<button on:click={clear}>
Clear completed
</button>

@ -0,0 +1,7 @@
---
title: Each block bindings
---
You can even bind to properties inside an `each` block.
TODO

@ -67,7 +67,8 @@ Another one should cover how to set up an editor for syntax highlighting.
## Bindings ## Bindings
* [ ] Form bindings (input, textarea, select, multiple select) * [x] Form bindings (input, textarea, select, multiple select)
* [ ] deep/contextual bindings
* [ ] Dimensions * [ ] Dimensions
* [ ] `this` * [ ] `this`
* [ ] shorthand * [ ] shorthand

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