Move Array Element

moveArrayElement

The moveArrayElement function repositions an element in an array from one index to another, returning a new array with the updated order.

Function Signature

function moveArrayElement<T>(arr: T[], fromIndex: number, toIndex: number): T[]

Parameters

• arr (T[]): The original array to operate on.
• fromIndex (number): The index of the element to move.
• toIndex (number): The target index where the element should be placed.

Returns

• T[]: A new array with the element moved to the desired position.

Example

Notes

• Returns a new array with the element moved — does not mutate the original array.
• If fromIndex and toIndex are equal or out of bounds, behavior mimics JavaScript’s splice mechanics without throwing errors.