return even array

Author: devvsakib

L-B/0012 oddToEvenAray/README.md

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+# 0012 oddToEven ( L-B )
+
+## Problem
+
+Given an array of even and odd numbers, return an array of even, convert odd numbers to even.
+
+## Test Cases
+
+- Input: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], Output: [2, 2, 4, 4, 6, 6, 8, 8, 10, 10]
+- Input: [1, 3, 5, 7, 9], Output: [2, 4, 6, 8, 10]
+- Input: [2, 4, 6, 8, 10], Output: [2, 4, 6, 8, 10]
+
+## Solution
+
+```javascript
+
+const numbers = [12, 43, 11, 77, 60, 40, 45];
+
+const oddToEven = arr => {
+    const evenArr = arr.map(ele => {
+        return ele % 2 !== 0 ? ele + 1 : ele
+    })
+    return evenArr;
+}
+oddToEven(numbers);
+
+```
+
+## How it works
+
+- The function takes an array as a parameter.
+- It creates a variable called evenArr and assigns it a value of the array passed as a parameter.
+- Using the map method, it iterates through the array and checks if the element is odd or even.
+- If the element is odd, it adds 1 to it and returns it.
+- If the element is even, it returns it.
+- It returns the evenArr variable.
+
+## References
+
+- [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map)
+- [Wikipedia](https://en.wikipedia.org/wiki/Map_(higher-order_function))
+- [GeeksforGeeks](https://www.geeksforgeeks.org/javascript-array-map-method/)
+
+## Problem Added By
+
+- [GitHub](https://www.github.com/devvsakib)
+- [LinkedIn](https://www.linkedin.com/in/devvsakib)
+- [Twitter](https://twitter.com/devvsakib)
+
+## Contributing
+
+Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
+
+Please make sure to update tests as appropriate.

L-B/0012 oddToEvenAray/oddToEvenArray.js

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+const numbers = [12, 43, 11, 77, 60, 40, 45];
+
+const oddToEven = arr => {
+    const evenArr = arr.map(ele => {
+        return ele % 2 !== 0 ? ele + 1 : ele
+    })
+    return evenArr;
+}
+oddToEven(numbers);