4dkankan-components/docs/examples/form/number-validate.vue

<template>
    <el-form ref="formRef" :model="numberValidateForm" label-width="100px" class="demo-ruleForm">
        <el-form-item
            label="age"
            prop="age"
            :rules="[
                { required: true, message: 'age is required' },
                { type: 'number', message: 'age must be a number' },
            ]"
        >
            <el-input v-model.number="numberValidateForm.age" type="text" autocomplete="off" />
        </el-form-item>
        <el-form-item>
            <el-button type="primary" @click="submitForm(formRef)">Submit</el-button>
            <el-button @click="resetForm(formRef)">Reset</el-button>
        </el-form-item>
    </el-form>
</template>

<script lang="ts" setup>
import { reactive, ref } from 'vue'
import type { FormInstance } from 'element-plus'

const formRef = ref<FormInstance>()

const numberValidateForm = reactive({
    age: '',
})

const submitForm = (formEl: FormInstance | undefined) => {
    if (!formEl) return
    formEl.validate(valid => {
        if (valid) {
            console.log('submit!')
        } else {
            console.log('error submit!')
            return false
        }
    })
}

const resetForm = (formEl: FormInstance | undefined) => {
    if (!formEl) return
    formEl.resetFields()
}
</script>