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callIfExists

Executes the given callback function, if present.

API​

function callIfExists<T extends (...args: unknown[]) => ReturnType<T>>(
  callback: T | undefined | null,
  ...args: Parameters<T>
): ReturnType<T> | undefined

Usage​

import { callIfExists } from '@feedzai/js-utilities';

// Calling a function with several arguments
callIfExists(functionName, arg1, arg2);

// Calling a function without any argument
callIfExists(functionName);