Algorithm to repeat a string num time

Problem:

Repeat a string numerous times.

This function input:

repeatStringNumTimes("abc", 3);

gives us this output:

abcabc

One of the way to achieve this:

Step 1

create a local variable equal to an empty string in order to have an empty container where to store all the string we are going to create:

let accumString = ""

Step 2

Create an iteration through a while loop

while ( num > 0 ) --> attention is a potential infinite loop

Step 3

Under the while loop condition fill up the variable using the addition assignment operator +=

accumString += str

Step 4

to avoid the infinite loop just created associate to num the decrement operator -- to stop the loop when num is 0.

note: the while loop is completed and we can close the curly bracket.

Step 5

Outside of the while loop but still inside the function insert the return statement to stop the function and return the value of the function.

Step 6

Now call the function repeatStringNumTimes("abc", 3) with inside a random string and integer.

the output will be: abcabc

The whole function just created below:

function repeatStringNumTimes(str, num) {

let accumString = "";
while ( num > 0 ){
accumString += str;
num--;
}

return accumString;
  }

repeatStringNumTimes("abc", 3);