TL;DR: Explore the distinction between pure and impure functions in JavaScript, where pure functions maintain predictability by avoiding side effects, while impure functions may alter external variables and yiel
In Javascript strings are immutable. Example, You cannot change the string value. If you want to modify a string it’ll always return a new string. Remember using trim, slice, toUpper functions Pure function These are the functions that always return the same value when given the same ...
Understanding pure and impure functions is a simple transition into cleaner, more role-based and testable code. In this post we’ll explore pure and impure functions...
在本文中,我们将介绍JavaScript中纯函数和非纯函数的概念,以及了解它们的区别,并对概念进行基本实现,以便更好地理解。 纯函数:这个函数在给定相同的输入参数时总是返回相同的输出。纯函数只依赖于它们的输入参数,不会影响应用程序的状态或代码的其他部分。 当函数尝试在函数内部使用任何外部代码...