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What is the output of the following code snippet?
 
```javascript
let arr = [1, 2, 3, 4, 5];
let doubledArr = arr.map((num) => num * 2);
console.log(doubledArr);
```
  • a)
    [1, 2, 3, 4, 5]
  • b)
    [2, 4, 6, 8, 10]
  • c)
    [2, 4, 6, 8, 10, 12]
  • d)
    [1, 4, 9, 16, 25]
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
What is the output of the following code snippet?```javascriptlet arr ...
The 'map()' method creates a new array by applying a provided function to each element of the original array. In this case, the function doubles each element of the array.
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Community Answer
What is the output of the following code snippet?```javascriptlet arr ...
Explanation:

1. Initial Array:
- The initial array `arr` is `[1, 2, 3, 4, 5]`.

2. Mapping Function:
- The `map()` function is used to create a new array by applying a function to each element of the original array.
- In this case, the mapping function `(num) => num * 2` multiplies each element of the original array by 2.

3. Applying Mapping Function:
- When the mapping function is applied to each element of the `arr`, we get the following results:
- 1 * 2 = 2
- 2 * 2 = 4
- 3 * 2 = 6
- 4 * 2 = 8
- 5 * 2 = 10

4. Doubled Array:
- The new array `doubledArr` is `[2, 4, 6, 8, 10]` after applying the mapping function.

5. Output:
- The `console.log(doubledArr)` statement prints the doubled array to the console.
Therefore, the output of the given code snippet is option B) [2, 4, 6, 8, 10].
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