/* Reusable validator functions used in controls definitions
*
* validator functions receive the v and the configuration of the field
* as arguments and return something that evals to false if v is valid,
* and an error message if not valid.
* */
export function numeric(v) {
if (v && isNaN(v)) {
return 'is expected to be a number';
}
return false;
}
export function integer(v) {
if (v && (isNaN(v) || parseInt(v, 10) !== +(v))) {
return 'is expected to be an integer';
}
return false;
}
export function nonEmpty(v) {
if (
v === null ||
v === undefined ||
v === '' ||
(Array.isArray(v) && v.length === 0)
) {
return 'cannot be empty';
}
return false;
}
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