Building an array from a string in JavaScript

We have to write a function that creates an array with elements repeating from the string till the limit is reached.

Suppose there is a string ‘aba’ and a limit 5.

e.g. string = "string" and limit = 8 will give new array

const arr = ["s","t","r","i","n",“g”,“s”,”t”]

Example

Let’s write the code for this function −

const string = 'Hello';
const limit = 15;
const createStringArray = (string, limit) => {
   const arr = [];
   for(let i = 0; i < limit; i++){
      const index = i % string.length;
      arr.push(string[index]);
   };
   return arr;
};
console.log(createStringArray(string, limit));
console.log(createStringArray('California', 5));
console.log(createStringArray('California', 25));

Output

The output in the console −

[
   'H', 'e', 'l', 'l',
   'o', 'H', 'e', 'l',
   'l', 'o', 'H', 'e',
   'l', 'l', 'o'
]
[ 'C', 'a', 'l', 'i', 'f' ]
[
   'C', 'a', 'l', 'i', 'f', 'o',
   'r', 'n', 'i', 'a', 'C', 'a',
   'l', 'i', 'f', 'o', 'r', 'n',
   'i', 'a', 'C', 'a', 'l', 'i',
   'f'
]

AmitDiwan

Updated on 17-Oct-2020 09:16:03

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