@ngspot/ngx-errors
Version:
<p align="center"> <img width="20%" height="20%" src="https://github.com/DmitryEfimenko/ngspot/blob/main/packages/ngx-errors/package/assets/logo.png?raw=true"> </p>
32 lines • 5.16 kB
JavaScript
import { isDevMode } from '@angular/core';
/**
* Makes it easy to trigger validation on the control, that depends on
* a value of a different control
*/
// eslint-disable-next-line @typescript-eslint/no-explicit-any
export function dependentValidator(opts) {
let subscribed = false;
return (formControl) => {
const form = formControl.root;
const { watchControl, condition, validator } = opts;
const controlToWatch = watchControl(form);
if (!controlToWatch) {
if (isDevMode()) {
console.warn(`dependentValidator could not find specified watchControl`);
}
return null;
}
if (!subscribed) {
subscribed = true;
controlToWatch.valueChanges.subscribe(() => {
formControl.updateValueAndValidity();
});
}
if (condition === undefined || condition(controlToWatch.value)) {
const validatorFn = validator(controlToWatch.value);
return validatorFn(formControl);
}
return null;
};
}
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