Welcome to mirror list, hosted at ThFree Co, Russian Federation.

model.md « directives « en « src « docs « packages « alpinejs - github.com/gohugoio/hugo-mod-jslibs-dist.git - Unnamed repository; edit this file 'description' to name the repository.
summaryrefslogtreecommitdiff
blob: 8e9831b45766023d528714310d879d84993bd1bc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
---
order: 7
title: model
---

# x-model

`x-model` allows you to bind the value of an input element to Alpine data.

Here's a simple example of using `x-model` to bind the value of a text field to a piece of data in Alpine.

```alpine
<div x-data="{ message: '' }">
    <input type="text" x-model="message">

    <span x-text="message">
</div>
```

<!-- START_VERBATIM -->
<div class="demo">
    <div x-data="{ message: '' }">
        <input type="text" x-model="message" placeholder="Type message...">

        <div class="pt-4" x-text="message"></div>
    </div>
</div>
<!-- END_VERBATIM -->


Now as the user types into the text field, the `message` will be reflected in the `<span>` tag.

`x-model` is two-way bound, meaning it both "sets" and "gets". In addition to changing data, if the data itself changes, the element will reflect the change.


We can use the same example as above but this time, we'll add a button to change the value of the `message` property.

```alpine
<div x-data="{ message: '' }">
    <input type="text" x-model="message">

    <button x-on:click="message = 'changed'">Change Message</button>
</div>
```

<!-- START_VERBATIM -->
<div class="demo">
    <div x-data="{ message: '' }">
        <input type="text" x-model="message" placeholder="Type message...">

        <button x-on:click="message = 'changed'">Change Message</button>
    </div>
</div>
<!-- END_VERBATIM -->

Now when the `<button>` is clicked, the input element's value will instantly be updated to "changed".

`x-model` works with the following input elements:

* `<input type="text">`
* `<textarea>`
* `<input type="checkbox">`
* `<input type="radio">`
* `<select>`

<a name="text-inputs"></a>
## Text inputs

```alpine
<input type="text" x-model="message">

<span x-text="message"></span>
```

<!-- START_VERBATIM -->
<div class="demo">
    <div x-data="{ message: '' }">
        <input type="text" x-model="message" placeholder="Type message">

        <div class="pt-4" x-text="message"></div>
    </div>
</div>
<!-- END_VERBATIM -->

<a name="textarea-inputs"></a>
## Textarea inputs

```alpine
<textarea x-model="message"></textarea>

<span x-text="message"></span>
```

<!-- START_VERBATIM -->
<div class="demo">
    <div x-data="{ message: '' }">
        <textarea x-model="message" placeholder="Type message"></textarea>

        <div class="pt-4" x-text="message"></div>
    </div>
</div>
<!-- END_VERBATIM -->

<a name="checkbox-inputs"></a>
## Checkbox inputs

<a name="single-checkbox-with-boolean"></a>
### Single checkbox with boolean

```alpine
<input type="checkbox" id="checkbox" x-model="show">

<label for="checkbox" x-text="show"></label>
```

<!-- START_VERBATIM -->
<div class="demo">
    <div x-data="{ open: '' }">
        <input type="checkbox" id="checkbox" x-model="open">

        <label for="checkbox" x-text="open"></label>
    </div>
</div>
<!-- END_VERBATIM -->

<a name="multiple-checkboxes-bound-to-array"></a>
### Multiple checkboxes bound to array

```alpine
<input type="checkbox" value="red" x-model="colors">
<input type="checkbox" value="orange" x-model="colors">
<input type="checkbox" value="yellow" x-model="colors">

Colors: <span x-text="colors"></span>
```

<!-- START_VERBATIM -->
<div class="demo">
    <div x-data="{ colors: [] }">
        <input type="checkbox" value="red" x-model="colors">
        <input type="checkbox" value="orange" x-model="colors">
        <input type="checkbox" value="yellow" x-model="colors">

        <div class="pt-4">Colors: <span x-text="colors"></span></div>
    </div>
</div>
<!-- END_VERBATIM -->

<a name="radio-inputs"></a>
## Radio inputs

```alpine
<input type="radio" value="yes" x-model="answer">
<input type="radio" value="no" x-model="answer">

Answer: <span x-text="answer"></span>
```

<!-- START_VERBATIM -->
<div class="demo">
    <div x-data="{ answer: '' }">
        <input type="radio" value="yes" x-model="answer">
        <input type="radio" value="no" x-model="answer">

        <div class="pt-4">Answer: <span x-text="answer"></span></div>
    </div>
</div>
<!-- END_VERBATIM -->

<a name="select-inputs"></a>
## Select inputs


<a name="single-select"></a>
### Single select

```alpine
<select x-model="color">
    <option>Red</option>
    <option>Orange</option>
    <option>Yellow</option>
</select>

Color: <span x-text="color"></span>
```

<!-- START_VERBATIM -->
<div class="demo">
    <div x-data="{ color: '' }">
        <select x-model="color">
            <option>Red</option>
            <option>Orange</option>
            <option>Yellow</option>
        </select>

        <div class="pt-4">Color: <span x-text="color"></span></div>
    </div>
</div>
<!-- END_VERBATIM -->

<a name="single-select-with-placeholder"></a>
### Single select with placeholder

```alpine
<select x-model="color">
    <option value="" disabled>Select A Color</option>
    <option>Red</option>
    <option>Orange</option>
    <option>Yellow</option>
</select>

Color: <span x-text="color"></span>
```


<!-- START_VERBATIM -->
<div class="demo">
    <div x-data="{ color: '' }">
        <select x-model="color">
            <option value="" disabled>Select A Color</option>
            <option>Red</option>
            <option>Orange</option>
            <option>Yellow</option>
        </select>

        <div class="pt-4">Color: <span x-text="color"></span></div>
    </div>
</div>
<!-- END_VERBATIM -->

<a name="multiple-select"></a>
### Multiple select

```alpine
<select x-model="color" multiple>
    <option>Red</option>
    <option>Orange</option>
    <option>Yellow</option>
</select>

Colors: <span x-text="color"></span>
```

<!-- START_VERBATIM -->
<div class="demo">
    <div x-data="{ color: '' }">
        <select x-model="color" multiple>
            <option>Red</option>
            <option>Orange</option>
            <option>Yellow</option>
        </select>

        <div class="pt-4">Color: <span x-text="color"></span></div>
    </div>
</div>
<!-- END_VERBATIM -->

<a name="dynamically-populated-select-options"></a>
### Dynamically populated Select Options

```alpine
<select x-model="color">
    <template x-for="color in ['Red', 'Orange', 'Yellow']">
        <option x-text="color"></option>
    </template>
</select>

Color: <span x-text="color"></span>
```

<!-- START_VERBATIM -->
<div class="demo">
    <div x-data="{ color: '' }">
        <select x-model="color">
            <template x-for="color in ['Red', 'Orange', 'Yellow']">
                <option x-text="color"></option>
            </template>
        </select>

        <div class="pt-4">Color: <span x-text="color"></span></div>
    </div>
</div>
<!-- END_VERBATIM -->

<a name="modifiers"></a>
## Modifiers

<a name="lazy"></a>
### `.lazy`

On text inputs, by default, `x-model` updates the property on every key-stroke. By adding the `.lazy` modifier, you can force an `x-model` input to only update the property when user focuses away from the input element.

This is handy for things like real-time form-validation where you might not want to show an input validation error until the user "tabs" away from a field.

```alpine
<input type="text" x-model.lazy="username">
<span x-show="username.length > 20">The username is too long.</span>
```

<a name="number"></a>
### `.number`

By default, any data stored in a property via `x-model` is stored as a string. To force Alpine to store the value as a JavaScript number, add the `.number` modifier.

```alpine
<input type="text" x-model.number="age">
<span x-text="typeof age"></span>
```

<a name="debounce"></a>
### `.debounce`

By adding `.debounce` to `x-model`, you can easily debounce the updating of bound input.

This is useful for things like real-time search inputs that fetch new data from the server every time the search property changes.

```alpine
<input type="text" x-model.debounce="search">
```

The default debounce time is 250 milliseconds, you can easily customize this by adding a time modifier like so.

```alpine
<input type="text" x-model.debounce.500ms="search">
```

<a name="throttle"></a>
### `.throttle`

Similar to `.debounce` you can limit the property update triggered by `x-model` to only updating on a specified interval.

<input type="text" x-model.throttle="search">

The default throttle interval is 250 milliseconds, you can easily customize this by adding a time modifier like so.

```alpine
<input type="text" x-model.throttle.500ms="search">
```

<a name="programmatic access"></a>
## Programmatic access

Alpine exposes under-the-hood utilities for getting and setting properties bound with `x-model`. This is useful for complex Alpine utilities that may want to override the default x-model behavior, or instances where you want to allow `x-model` on a non-input element.

You can access these utilities through a property called `_x_model` on the `x-model`ed element. `_x_model` has two methods to get and set the bound property:

* `el._x_model.get()` (returns the value of the bound property)
* `el._x_model.set()` (sets the value of the bound property)

```alpine
<div x-data="{ username: 'calebporzio' }">
    <div x-ref="div" x-model="username"></div>

    <button @click="$refs.div._x_model.set('phantomatrix')">
        Change username to: 'phantomatrix'
    </button>

    <span x-text="$refs.div._x_model.get()"></span>
</div>
```

<!-- START_VERBATIM -->
<div class="demo">
    <div x-data="{ username: 'calebporzio' }">
        <div x-ref="div" x-model="username"></div>

        <button @click="$refs.div._x_model.set('phantomatrix')">
            Change username to: 'phantomatrix'
        </button>

        <span x-text="$refs.div._x_model.get()"></span>
    </div>
</div>
<!-- END_VERBATIM -->