JS Utils: JavaScript tool functions that help you get twice the result with half the effort

In JavaScript development, using tool functions can greatly improve the readability, maintainability and development efficiency of the code. This article will share some commonly used JS Utils tool functions. These functions can help you simplify your code, reduce redundancy, and get twice the result with half the effort.

1. deep copy function

Deep copying is a requirement that is often encountered when dealing with objects and arrays in JavaScript. The following is a utility function for implementing deep copy:

function deepClone(obj) {
   
    
    
  if (obj === null || typeof obj !== 'object') {