Remove Array Value By index in jquery

Array:

var arr = {'abc','def','ghi'};

I want to remove above array value 'def' by using index.

Use the splice method.

ArrayName.splice(indexValueOfArray,1);

This removes 1 item from the array starting at indexValueOfArray.

Your example code is wrong and will throw a SyntaxError. You seem to have confused the syntax of creating an object Object with creating an Array.

The correct syntax would be: var arr = [ "abc", "def", "ghi" ];

To remove an item from the array, based on its value, use the splice method:

arr.splice(arr.indexOf("def"), 1);

To remove it by index, just refer directly to it:

arr.splice(1, 1);