insert an element into an array at a specific index in javascript

In JavaScript, you can insert an element into an array at a specific index using the splice method. The splice method is a mutable operation, which means the original array is modified.

Here's an example:

index.tsx
const myArray = [1, 2, 3, 4, 5];

// Insert the value 6 at index 2
myArray.splice(2, 0, 6);

console.log(myArray); // Output: [1, 2, 6, 3, 4, 5]
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In the above example, we first declare an array myArray with elements [1, 2, 3, 4, 5]. The splice method is then called on this array, passing in the index at which we want to insert the new value (in this case, 2), how many elements we want to remove (in this case, 0), and the value we want to insert (in this case, 6).

After running this code, myArray is now [1, 2, 6, 3, 4, 5].