inomdzhon

HOC typing

Typescript

function higherOrderFn<T extends (...args: any[]) => any>(fn: T): (...args: Parameters<T>) => ReturnType<T> {
  return (...args: Parameters<T>) => {
    return fn(args);
  };
}

inomdzhon

// other way
function isNumber(evt) {
  evt = (evt) ? evt : window.event;
  var charCode = (evt.which) ? evt.which : evt.keyCode;
  if (charCode > 31 && (charCode < 48 || charCode > 57)) {
    return false;
  }
  return true;
}

inomdzhon

const validateMethods = {
  noMeta: function (arrayHashtag) {
    return arrayHashtag.some((hashtag) => hashtag.trim() === '#');
  },

  countExceeded: function (arrayHashtag, maxCount) {
    return arrayHashtag.length > maxCount;
  },

  lengthExceeded: function (arrayHashtag, maxLength) {