JavaScript: Demonstration of basic concepts

Variables

Global Variables:
Local Variable in function:
Nested Funcions

Functions

Function to print username:


                    printUsername("kMuldoon@nisum.com")

Self invoking anonymous function sqaure a number:
((n) => document.write(n * n))(10);

Conditionals

IF ELSE-IF ELSE


                    let name = "kyle"; 

                    if (name === "bob") {
                        document.write("bob was here");
                    }
                    else if (name === "joe") {
                        document.write("joe was here");
                    }
                    else {
                        document.write("Kyle was here");
                    }

SWITCH

Loops