stringCase validator
Check if a string is a lower or upper case one
Options
Use with form field
The HTML attributes are used to set the validator options via the Declarative plugin
| Name | HTML attribute | Type | Description |
|---|---|---|---|
case |
data-fv-string-case___case |
String | Can be lower (the default value) or upper |
message |
data-fv-string-case___message |
String | The error message |
Use with JavaScript module
// You might need to change the importing path
import stringCase from 'formvalidation/validators/stringCase';
const result = stringCase().validate({
value: ...,
options: {
'case': ...,
message: ...,
},
});
// result is an object of
// {
// valid: true or false,
// message: The error message
// }
Basic Example
The following form asks user to enter a credit card holder in uppercase:
Module Example
The following snippet shows how to use the stringCase validator with JavaScript module:
// You might need to change the importing path
import stringCase from 'formvalidation/validators/stringCase';
const res1 = stringCase().validate({
value: 'JOHN SMITH',
options: {
'case': 'upper',
message: 'The name must be in must be in uppercase',
},
});
// res1.valid === true
const res2 = stringCase().validate({
value: 'John Smith',
options: {
'case': 'lower',
message: 'The name must be in must be in lowercase',
},
});
// res2.valid === false