--- title: "NULLIF()" slug: "nullif" updated: 2025-10-14T16:28:30Z published: 2025-11-19T15:54:21Z canonical: "support.tulip.co/nullif" --- > ## Documentation Index > Fetch the complete documentation index at: https://support.tulip.co/llms.txt > Use this file to discover all available pages before exploring further. # NULLIF() ## Description Returns null if the first argument equals the second argument, otherwise returns the first argument ## Available In - **Apps** - **Automations** - **Analysis** ## Syntax NULLIF(a: T, b: T) => T ## Example NULLIF("a", "a") = null nullif("a","b") = "a"