Form Validation

The form designer has several common validation methods built in, and you can customize the error message content.

Required

Type

Several common type checks are provided in single-line text boxes such as string, URL, mailbox, etc.

Regular Expression

Imput the correct regular expression, using a mobile phone number as an example:/^1[3456789]\d{9}$/。

TIP

Regular expressions should be wrapped with //, as in：/^1[3456789]\d{9}$/

Custom Validation Rules

(rule, value, callback) => {
  if (value.length < 5) {
    callback('at lease 5 characters')
  } else {
    callback()
  }
}

rule:

Verification rule, you can view the verification configuration information through this parameter; rule.field can get the field identifier of the current verification.

value:

Value of the current field.

* callback:

Callback function (must be called) upon completion of validation;

callback('Error message') / callback(new Error('Error message')) There are two ways to return an error message.

notice

The callback() function is also called to verify success in the custom checkup method.

(rule, value, callback) => {
  // End the custom validation
    callback()
}