This is a [fonk](https://github.com/Lemoncode/fonk) microlibrary that brings validation capabilities to validate if a field of a form is a number
npm install @lemoncode/fonk-is-number-validator
This is a fonk microlibrary that brings validation capabilities to:
- Validate if a field of a form is a number.
How to add it to an existing form validation schema:
We have the following form model:
``
const myFormValues = {
product : 'shoes',
price: 20,
}
We can add a isNumber validation to the myFormValues
`javascript
import { isNumber } from '@lemoncode/fonk-is-number-validator';
const validationSchema = {
field: {
price: [isNumber.validator],
},
};
`
You can specify the custom arguments in two ways:
- Locally just customize the arguments for this validationSchema:
`javascript
import { isNumber } from '@lemoncode/fonk-is-number-validator';
const validationSchema = {
field: {
price: [
{ validator: isNumber.validator, customArgs: { strictTypes: true } },
],
},
};
`
- Globally, replace the default custom arguments in all validationSchemas (e.g. enable strict types):
`javascript
import { isNumber } from '@lemoncode/fonk-is-number-validator';
isNumber.setCustomArgs({ strictTypes: true });
`
You can customize the error message displayed in two ways:
- Globally, replace the default error message in all validationSchemas (e.g. porting to spanish):
`javascript
import { isNumber } from '@lemoncode/fonk-is-number-validator';
isNumber.setErrorMessage('El campo debe de ser numérico');
`
- Locally just override the error message for this validationSchema:
`javascript
import { isNumber } from '@lemoncode/fonk-is-number-validator';
const validationSchema = {
field: {
price: [
{
validator: isNumber.validator,
message: 'Error message only updated for the validation schema',
},
],
},
};
``
Please, refer to fonk to know more.
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