- Data Structure
- Networking
- RDBMS
- Operating System
- Java
- MS Excel
- iOS
- HTML
- CSS
- Android
- Python
- C Programming
- C++
- C#
- MongoDB
- MySQL
- Javascript
- PHP
- Physics
- Chemistry
- Biology
- Mathematics
- English
- Economics
- Psychology
- Social Studies
- Fashion Studies
- Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Repeat even number inside the same array - JavaScript
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 ]
Advertisements