npm

npm install vee-validate --save

vee-validate3.0 内置默认规则

官方链接:

https://logaretm.github.io/vee-validate/api/rules.html#required

    "alpha": "{_field_}只能包含字母字符",
    "alpha_dash": "{_field_}能够包含字母数字字符、破折号和下划线",
    "alpha_num": "{_field_}只能包含字母数字字符",
    "alpha_spaces": "{_field_}只能包含字母字符和空格",
    "between": "{_field_}必须在{min}与{max}之间",
    "confirmed": "{_field_}不能和{target}匹配",
    "digits": "{_field_}必须是数字，且精确到{length}位数",
    "dimensions": "{_field_}必须在{width}像素与{height}像素之间",
    "email": "{_field_}不是一个有效的邮箱",
    "excluded": "{_field_}不是一个有效值",
    "ext": "{_field_}不是一个有效的文件",
    "image": "{_field_}不是一张有效的图片",
    "oneOf": "{_field_}不是一个有效值",
    "integer": "{_field_}必须是整数",
    "length": "{_field_}长度必须为{length}",
    "max": "{_field_}不能超过{length}个字符",
    "max_value": "{_field_}必须小于或等于{max}",
    "mimes": "{_field_}不是一个有效的文件类型",
    "min": "{_field_}必须至少有{length}个字符",
    "min_value": "{_field_}必须大于或等于{min}",
    "numeric": "{_field_}只能包含数字字符",
    "regex": "{_field_}格式无效",
    "required": "{_field_}是必须的",
    "required_if": "{_field_}是必须的",
    "size": "{_field_}必须小于{size}KB"

regex 正则表达式校验示例：

<ValidationProvider :rules="{ regex: /^[0-9]+$/ }" v-slot="{ errors }">
  <input type="text" v-model="value">
  <span>{{ errors[0] }}</span>
</ValidationProvider>

oneOf 验证项下的字段必须具有指定列表中的值。使用双等号进行检查：

<ValidationProvider rules="oneOf:1,2,3" v-slot="{ errors }">
  <select v-model="value">
    <option value="1">One</option>
    <option value="2">Two</option>
    <option value="3">Three</option>
    <option value="4">Invalid</option>
  </select>
  <span>{{ errors[0] }}</span>
</ValidationProvider>