okay everybody we gotta discuss variable scope i'll explain local variables and global variables local variables are declared inside of a function or block of curly braces such as within the main ...

Nowadays JavaScript has three different keywords to declare a variable — var, let and, const. Each has its own properties and particularities. Let’s start by making a simple comparison table of the ...

Global variables are divisive: an invaluable shortcut or a dangerous example of sloppy code? Let's talk about what they do, what they’re good for, and why you should be extra careful using them. A ...

Nowadays JavaScript has three different keywords to declare a variable — var, let and, const. Each has its own properties and particularities. Let’s start by making a simple comparison table of the ...