|
所在平台: Udemy |
课程主页: https://www.udemy.com/course/javascript-variables-lifecycles/
课程评论：没有评论
**课程名称：JavaScript 变量生命周期** **课程概述：** 本课程将深入探讨 JavaScript 变量的生命周期，帮助您理解不同变量类型、作用域的真正含义，并清晰解释变量提升（hoisting）和闭包（closures）。您将深入了解 JavaScript 引擎在编译和执行阶段所发生的一切，特别是变量声明、初始化和赋值这三个关键阶段。 课程还将重点关注变量使用指南，包括： * 使代码清晰易读 * 始终在首次使用前声明变量 * 全局使用 `"use strict"` * 避免将局部变量暴露给外部作用域 您将通过实际练习来巩固对变量、变量提升、作用域和闭包的理解。所有练习和代码示例都提供 Git 仓库。 **目标学员：** 希望深入理解 JavaScript 变量工作原理的开发者。
Do you want to understand real difference between different types of variables in JavaScript?Understand different types of scopes?Want easily explain what is hoisting?What about closures?In this course I will dive deep into the JavaScript and explain you what happens under the hood when you declare any variable or function. You will understand what happens on the "Compilation" and "Execution" phases in JavaScript Engine.I will make explain you what is variable declaration, initialization and assignment that are all-together called Variable Lifecycle Phases.We will also focus in this course on the Variables Usage Guidelines:Make Code clear and readable for othersAlways declare variables before first usageAlways use "use strict" globallyDon't expose to the outer scopes local variablesYou will also get several practical exercises where you will need to apply gain knowledge about different variables, hoisting, scopes and closures.All exercises and code samples are available as Git repository.In this course I will dive deep into the JavaScript and explain you what happens under the hood when you declare any variable or function. You will understand what happens on the "Compilation" and "Execution" phases in JavaScript Engine.I will make explain you what is variable declaration, initialization and assignment that are all-together called Variable Lifecycle Phases.We will also focus in this course on the Variables Usage Guidelines:Make Code clear and readable for othersAlways declare variables before first usageAlways use "use strict" globallyDon't expose to the outer scopes local variablesHope to see you onboard!
