Question: How to insert an item into an array at a specific index in JavaScript
Answer:
First Method:
myArray = ["Red","Green", "Black", "Orange", "Yellow"]; myArray.splice(4, 0, "Blue"); console.log(myArray.join());
Output:
["Red", "Green", "Black", "Orange", "Blue", "Yellow"]
Second Method:
myArray = ["Red","Green", "Black", "Orange", "Yellow"]; Array.prototype.insertItem = function ( index, item ) { this.splice( index, 0, item ); }; myArray.insertItem(4, 'Blue'); console.log(myArray);
Output:
["Red", "Green", "Black", "Orange", "Blue", "Yellow"]
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