javascript How I want to add data to my desired location in array?

 

This question already has an answer here:

  • How to insert an item into an array at a specific index? 10 answers

    • You're looking for the .splice() method for arrays. Read about it here.

    For your example, it would be something like

    arr.splice(2,0,'@')

    This says "go to element 2 of the array, remove 0 elements, and add the element '@'".

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