Naming Variables

Remember that we declare a new variable by typing the let keyword and then assigning a name to the variable.
A variable’s name is also known as an identifier.

let blank;

Rule 1

Names must begin with a letter, an underscore, or a dollar sign $ (best coding practice starts names with a lowercase letter).
The letter of the first word in an identifier should always be lowercase, and the first word of any proceeding words should be uppercase.

// This practice is called camelcase. Ex: 
// myVariable, placeHolder, camelCase

Reserved words example

            let monthlyRent = 600;
            let carNote$ = 300;
            let home_address = "789 Super Fun Ln.";
            let businessAddress2 = "326 City Rd.";
            let lunchTotal$ = 11.49;

notice the different types of data assigned

Naming Variables Remember that we declare a new variable by typing the let keyword and then assigning a name to the variable. A variable’s name is also known as an identifier. let blank;