相关疑难解决方法(0)

我遇到了问题,Vue将number类型的输入字段的值转换为字符串,我无法弄清楚原因.我正在遵循的指南没有遇到这个问题,正如预期的那样得到值作为数字.

vue docs声明,如果输入的类型是数字,Vue会将值转换为数字.

该代码是源于一个组成部分,但我调整它在运行的jsfiddle:https://jsfiddle.net/d5wLsnvp/3/

<template>
    <div class="col-sm-6 col-md-4">
        <div class="panel panel-success">
            <div class="panel-heading">
                <h3 class="panel-title">
                    {{ stock.name }}
                    <small>(Price: {{ stock.price }})</small>
                </h3>
            </div>
            <div class="panel-body">
                <div class="pull-left">
                    <input type="number" class="form-control" placeholder="Quantity" v-model="quantity"/>
                </div>
                <div class="pull-right">
                    <button class="btn btn-success" @click="buyStock">Buy</button>
                </div>
            </div>
        </div>
    </div>
</template>

<script>
    export default {
        props: ['stock'],
        data() {
            return {
                quantity: 0 // Init with 0 stays a number
            };
        },
        methods: {
            buyStock() {
                const order = {
                    stockId: this.stock.id,
                    stockPrice: this.stock.price,
                    quantity: …