保留两位小数

 HTML:

<div v-for="(item, index) in list" :key="index">

   <input v-model="item.enable_amount" type="number" @input=" numberFixedDigit($event, item, 'enable_amount')"/>

</div>

data:

list: [

        { enable_amount: null},

        { enable_amount: null},

    

],

js:

   numberFixedDigit(e, obj, name) {

            e.target.value = e.target.value.match(/^\d*(\.?\d{0,2})/g)[0] || "";

            this.$nextTick(() => {

                obj[name] = Number(e.target.value) || null;

            });

        },