https://gomontag.com/_content/Blazorise/validators/DateTimeMaskValidator.9sjnuohl93.js

1export function DateTimeMaskValidator(element, elementId) {
2    this.elementId = elementId;
3    this.element = element;
4    this.regex = function () {
5        return /^\d{0,4}$|^\d{4}-0?$|^\d{4}-(?:0?[1-9]|1[012])(?:-(?:0?[1-9]?|[12]\d|3[01])?)?$/;
6    };
7    this.carret = function () {
8        return [this.element.selectionStart, this.element.selectionEnd];
9    };
10    this.isValid = function (currentValue) {
11        var value = this.element.value,
12            selection = this.carret();
13
14        return value = value.substring(0, selection[0]) + currentValue + value.substring(selection[1]), !!this.regex().test(value);
15    };
16}