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import { FormControl } from '@angular/forms';
export function validateUrl(c: FormControl) {
let URL_REGEXP = new RegExp('^https?://(www\.)?[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,6}\\b([-a-zA-Z0-9@:%_\+.~#?&//=]*)$');
return URL_REGEXP.test(c.value) ? null : {
validateUrl: {
valid: false
}
};
}
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