jаvascript Variables Lifecycles
.MP4 | Video: 1280x720, 30 fps(r) | Audio: AAC, 48000 Hz, 2ch | 1.55 GB
Duration: 3 hours | Genre: eLearning | Language: English
Understand jаvascript Engine phases and lifecycles of the "var", "let", "const". Scopes, hoisting, closures simplified.

Understand jаvascript Engine phases and lifecycles of the "var", "let", "const". Scopes, hoisting, closures simplified.

What Will I 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 jаvascript 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

Requirements

Basic jаvascript knowledge
Fundamentals of CSS
Basic understanding of HTML

Description

Do you want to understand real difference between different types of variables in jаvascript?

Understand different types of scopes?

Want easily explain what is hoisting?

What about closures?

In this course I will dive deep into the jаvascript 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 jаvascript 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.

Hope to see you onboard!

Who is the target audience?

jаvascript developers
Front-end developers
Full-stack developers