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JavaScript Variables Lifecycles Course Site

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Understand JavaScript Engine phases and lifecycles of the “var”, “let”, “const”. Scopes, hoisting, closures simplified.

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Explain the difference between global scope, function scope, and block scope

Understand how variables declared using “var” behave

Explain the 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 the lifecycle of the function

Practice and understand most important variables usage guidelines

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