Usage

isFunction(0); // => false
isFunction(() => {}); // => true
isFunction(function () {}); // => true
isFunction(async function () {}); // => true
isFunction(class {}); // => false

Installation

CLI

npx atmx add helper is-function

Manually

Copy and paste the following method into @/utils/helpers/undefined.ts:

/**
* Return true if the given value is a function.
*
* @example
* isFunction(0) // => false
* isFunction(() => {}) // => true
* isFunction(function() {}) // => true
* isFunction(async function() {}) // => true
* isFunction(class {}) // => false
*/
// biome-ignore lint/complexity/noBannedTypes:
export function isFunction(value: any): value is Function {
return typeof value === "function";
}