JavaScript2/Week3/homework/step2-3.js at 8a8a2648a9fc8a8b354535de62debf80c1c30246 · foocoding/JavaScript2 · GitHub

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'use strict';

// Use a 'for' loop
function repeatStringNumTimesWithFor(str, num) {
  // eslint-disable-next-line prefer-const
  let result = '';

  for (let i = 0; i < num; i++) {
    result = +str;
    num--;
  }

  return result;
}
// but when I console.log it returns : for NaN!!!!
console.log('for', repeatStringNumTimesWithFor('abc', 3));

/*************************************************************************/

// Use a 'while' loop
function repeatStringNumTimesWithWhile(str, num) {
  // eslint-disable-next-line prefer-const
  let result = '';

  while (num > 0) {
    result += str;
    num--;
  }

  return result;
}

console.log('while', repeatStringNumTimesWithWhile('abc', 3));

// Use a 'do...while' loop
function repeatStringNumTimesWithDoWhile(str, num) {
  // eslint-disable-next-line prefer-const
  let result = '';
  let i = 0;

  do {
    result = +str;
    i++;
  } while (i < num);

  return result;
}

console.log('do-while', repeatStringNumTimesWithDoWhile('abc', 3));

// Do not change or remove anything below this line
module.exports = {
  repeatStringNumTimesWithFor,
  repeatStringNumTimesWithWhile,
  repeatStringNumTimesWithDoWhile,
};