Function
compose

Performs functions composition from right to left.

💡

The compose function is equivalent to a(b(c(val))).

Related

Syntax

import { compose } from '@opentf/std';
 
compose(val: unknown, ...fns: Function[]): unknown

Examples

compose(1); //=> 1
 
compose(-1, Math.abs); //=> 1
 
compose(-4, Math.sqrt, Math.abs); //=> 2
 
compose(
  1.5,
  Math.ceil,
  (x) => x + 1,
  (x) => x * 5
); //=> 9

Try

Learn

Why we need function composition?

  • The deep nesting of functions is hard to read.
  • It eliminates temporary variables.
  • Method chaining is limited, for Eg: await, yeild, etc.

Resources

rgbToHexcomposeFn