Notion splice Function

A quick reference for the Notion splice function, including syntax, purpose, return value, and examples.

Quick reference

Item	Details
Function	`splice()`
Category	Latest reference
Syntax	`splice(list, start, deleteCount?, ...items)`
Purpose	Delete or insert list items and return a new list
Recommended alternative	`slice()` + `concat()`

Official example of the splice function in the Notion formula editor

splice(["A", "B", "C"], 1, 1)

Example result: ["A", "C"].

Insert an item:

splice(["A", "C"], 1, 0, "B")

Example result: ["A", "B", "C"].

Alternative:

concat(slice(["A", "B", "C"], 0, 1), slice(["A", "B", "C"], 2))