We are required to write a JavaScript function that should repeat the even number inside the same array.
Therefore, for example given the following array −
const arr = [1, 2, 5, 6, 8];
We should get the output −
const output = [1, 2, 2, 5, 6, 6, 8, 8];
Example
Following is the code −
const arr = [1, 2, 5, 6, 8]; const repeatEvenNumbers = arr => { let end = arr.length -1; for(let i = end; i > 0; i--){ if(arr[i] % 2 === 0){ arr.splice(i, 0, arr[i]); }; }; return arr; }; console.log(repeatEvenNumbers(arr));
Output
This will produce the following output on console −
[ 1, 2, 2, 5, 6, 6, 8, 8 ]