Form input binding for Vue.js-JS Tutorial-php.cn

Form input binding for Vue.js

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Release： 2018-03-19 16:25:26

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This time I will bring you Vue.js form input binding. What are the precautions for Vue.js form input binding. Here is a practical case, let’s take a look.

Using v-model can realize two-way binding between the value of the form element and the background data. The specific usage is as follows:

<!--文本-->
    <input v-model="message" placeholder="edit me">
    <p>Message is: {{ message }}</p>
    <!--checkbox多个复选框绑定(value)到数组，单个v-model绑定到布尔值即可-->
    <input type="checkbox" id="checkbox" v-model="checked">
    <label for="checkbox">单个复选框</label>
    <br>
    <input type="checkbox" id="jack" value="Jack" v-model="checkedNames">
    <label for="jack">Jack</label>
    <input type="checkbox" id="john" value="John" v-model="checkedNames">
    <label for="john">John</label>
    <input type="checkbox" id="mike" value="Mike" v-model="checkedNames">
    <label for="mike">Mike</label>
    <br>
    <span>Checked names: {{ checkedNames }}</span>
    <br><br>
    <!--单选radio-->
    <input type="radio" id="one" value="One" v-model="picked">
    <label for="one">One</label>
    <br>
    <input type="radio" id="two" value="Two" v-model="picked">
    <label for="two">Two</label>
    <br>
    <span>Picked: {{ picked }}</span>
    <br><br>
    <!--选择框select,多选时绑定到数组,可用v-for渲染动态选项-->
    <select v-model="selected">
        <option disabled value="">请选择</option>
        <option>A</option>
        <option>B</option>
        <option>C</option>
    </select>
    <span>Single selected: {{ selected }}</span>
    <br><br>
    <select v-model="multiSelected" multiple style="width: 50px;">
    <option>A</option>
    <option>B</option>
    <option>C</option>
    </select>
    <br>
    <span>Multiple Selected: {{ multiSelected }}</span>

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　 Modifiers can be added to v-model:

v-model.lazy -- Convert the input event to use the change event for synchronization.

　.number -- Automatically convert the value to a numeric value.

　.trim -- Remove the leading and trailing spaces of the input.

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!