stringLength validator
Validate the length of a string
Options
Using with form field
* presents a required option. The HTML attributes are used to set the validator options via the Declarative plugin
| Name | HTML attribute | Type | Description |
|---|---|---|---|
max* | data-fv-string-length___max or maxlength | Number | The maximum length |
message | data-fv-string-length___message | String | The error message |
min* | data-fv-string-length___min or minlength | Number | The minimum length |
utf8Bytes | data-fv-string-length___utf8-bytes | Boolean | Evaluate string length in UTF-8 bytes. Default to false |
trim | data-fv-string-length___trim | Boolean | Indicate the length will be calculated after trimming the value or not. Default to false |
At least one of min and max options is required.
Using with ES6 module
Basic Example
In the following form, the Full name and Bio fields must be less than 50 and 200 characters respectively.
HTML5 Example
When the Declarative plugin is used, the stringLength validator will be turned on automatically if the input uses HTML 5 maxlength or minlength attribute.
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ES6 Module Example
The following snippet shows how to use the stringLength validator with ES6 module:
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