I am on 8.3.7 version of redux-form, I am using the Field which should be allowed to accept ONLY positive integers between the range 0-9999.
const REGEX_SPECIAL_CHARACTERS = /[@\-\_\!\#\$\%\.\&]/;
<Field
mandatory
step={1}
name="fieldName"
type="number"
min={0}
max={9999}
normalize={(value) => {
console.log({value});
return value?.split(REGEX_SPECIAL_CHARACTERS, 1).join('');
}}
>
Text
</Field>
I am using the normalize prop to validate this. If I enter 1.9, on blur it will set 1 which is ok. If I do -0 or -1 or just -n (n = any number) it just removes the entire value leaving an empty field and I need it to be ALWAYS 0 if there is whatever value going less than 0.
I do not know if maybe using the format prop but IDK how to use it => https://redux-form.com/8.3.0/docs/api/field.md/#-code-format-value-name-gt-formattedvalue-code-optional-
So any ideas on how I can fix this?
So this would immediately remove any characters that are not digits, thus only allowing positive integers:
const onlyDigits = new RegExp('\\d+');
const parsePositiveInt = (value) => {
const matches = value.match(onlyDigits);
return matches ? parseInt(matches[0]) : 0;
};
// ...
normalize={(value) => parsePositiveInt(value).toString()}
It's not converting 1.9 to 1 as you described, it would rather turn this into 19.