spliceInsert

The spliceInsert() function inserts an array of elements at a precise index without deleting existing values.

Interactive example

Syntax

Classic signature

function spliceInsert<
	GenericElement extends unknown
>(
	input: readonly GenericElement[],
	indexFrom: number,
	elements: GenericElement[]
): GenericElement[]

Curried signature

function spliceInsert<
	GenericElement extends unknown
>(
	indexFrom: number,
	elements: GenericElement[]
): (input: readonly GenericElement[]) => GenericElement[]

Parameters

• input: Source array.
• indexFrom: Position at which to insert the new values.
• elements: Array of values to insert.

Return value

A new array containing the elements added at the requested index, with existing elements shifted.

See also

• spliceDelete - Deletes a segment
• spliceReplace - Replaces a segment with another

Sources

• MDN Web Docs - Array.prototype.splice()