详解element-ui 表单校验 Rules 配置 常用黑科技

// 校验
string: [
 {type: 'string', message: `请输入字符串`, trigger: 'blur'}
]

<el-form-item label="测试字段" prop="string">
 <el-input v-model.number="form.string" placeholder="请输入"></el-input>
</el-form-item>

// 校验
number: [
 {type: 'number', message: `请输入数字`, trigger: 'blur'}
]

<el-form-item label="测试字段" prop="number">
 <el-input v-model="form.number" placeholder="请输入"></el-input>
</el-form-item>

// 校验
boolean: [
 {type: 'boolean', message: `请输入数字`, trigger: 'change'}
]

<el-form-item label="测试字段" prop="boolean">
 <el-select v-model="form.boolean" placeholder="请选择">
 <el-option label="true" :value="true"></el-option>
 <el-option label="false" :value="false"></el-option>
 <el-option label="字符串" :value="'zifuchuan'"></el-option>
 </el-select>
</el-form-item>

// 校验
float: [
 {type: 'float', message: `请输入浮点数`, trigger: 'blur'}
]

// 校验
array: [
 {type: 'array', message: `请选择数组`, trigger: 'change'}
]

<el-form-item label="测试字段" prop="array">
 <el-select v-model="form.array" placeholder="请选择">
 <el-option label="数组" :value="[1,2,3]"></el-option>
 <el-option label="false" :value="false"></el-option>
 <el-option label="字符串" :value="'zifuchuan'"></el-option>
 </el-select>
</el-form-item>

// 校验
enum: [
 {type: 'enum', enum: ['aaa', 'bbb'], message: `不存在enum中`, trigger: 'change'}
]

// 校验
url: [
 {type: 'url', message: `请输入正确的url`, trigger: 'change'}
]

// 校验url: [ {type: 'url', message: `请输入正确的url`, trigger: 'change'}]

// 校验
name: [
 {required: true, message: `请输入`, trigger: 'blur'}
]

// 校验
number: [
 {pattern: /^[0-9]*$/, message: `请输入数字`, trigger: 'blur'}
]

// 校验
minmax: [
 {min: 3, max: 8, message: '请输入3-8位', trigger: 'blur'}
]

// 校验
length: [
 {len: 5, message: '请输入5位', trigger: 'blur'}
]

// 校验
whitespace: [
 {whitespace: true, message: '只存在空格', trigger: 'blur'}
]

// 校验
transform: [
 {type: 'enum', enum: [2,4,6], message: `结果不存在`, trigger: ['change', 'blur'], transform(value) {return Number(value * 2)}}
]

let numberLengthSix = (rule, value, callback) => {
 if(String(value).length > 6) {
 callback('超出限制')
 } else {
 callback()
 }
}

// 校验
numberLengthSix: [
 {validator: numberLengthSix, trigger: 'blur'}
]