Repeat a String for Num times

DESCRIPTION:

Repeat a given string str (first argument) for num times (second argument). Return an empty string if num is not a positive number. For the purpose of this challenge, do not use the built-in .repeat() method.

Examples
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This content originally appeared on DEV Community and was authored by Muhmmad Awd

DESCRIPTION:

Repeat a given string str (first argument) for num times (second argument). Return an empty string if num is not a positive number. For the purpose of this challenge, do not use the built-in .repeat() method.

Examples 

repeatStringNumTimes("abc", 3)
//should return `abcabcabc`.

My approach for solving this problem:

  • return "" if the num is negative.
  • loop for num times
  • storge the str value inside result var
  • return the final result

My solution: 

function repeatStringNumTimes(str, num) {
  let result = ""

  if(num<0){
    return ""
  }

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

  return result;
}

repeatStringNumTimes("abc", 3);

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This content originally appeared on DEV Community and was authored by Muhmmad Awd


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