Functional
Composefunction

🧪 Creates a function that performs function composition from right to left.

💡

The resulting function is equivalent to a(b(c(...args))).

Syntax

import { composeFunction } from '@opentf/std';
 
composeFunction(
  ...fns: ((...args: any[]) => any)[]
): (...args: any[]) => any

Parameters

  • ...fns: A sequence of functions to compose from right to left.

Returns

A new function that takes arguments, passes them to the rightmost function, and then pipes the result through the remaining functions from right to left.

Examples

const transform = composeFunction(Math.abs, Math.pow);
transform(-2, 3); //=> 8 ( Math.abs(Math.pow(-2, 3)) = Math.abs(-8) = 8 )

Related

Try

Learn

Why do we need function composition?

  • Readability: Deep nesting of functions like c(b(a(x))) is hard to read.
  • Conciseness: It eliminates the need for temporary variables.
  • Flexibility: Method chaining is limited when dealing with await, yield, etc.

Resources

pipePipefunction