JavaScript Variables Lifecycles
Understand JavaScript Engine phases and lifecycles of the "var", "let", "const". Scopes, hoisting, closures simplified.
What you will learn
Explain difference between global scope, function scope and block scope
Understand how variables declared using "var" behave
Explain difference between "let" and "const"
Practice different variables declarations types
Understand two JavaScript Engine Phases - "Compilation" and "Execution"
Deeply understand variables lifecycle phases for variables declared using "var", "let" and "const"
Explain lifecycle phases for the undeclared variables
Understand lifecycle of the function
Practice and understand most important variables usage guidelines
Why take this course?
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 others
Always declare variables before first usage
Always use "use strict" globally
Don't expose to the outer scopes local variables
You 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 others
Always declare variables before first usage
Always use "use strict" globally
Don't expose to the outer scopes local variables
Hope to see you onboard!
Content
Course Setup
Scopes
Var, Let and Const
JavaScript Engine Phases
Variable Lifecycle Phases
Summary
Screenshots
Reviews
Charts
Price
Rating
Enrollment distribution
