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                ///////////////////////////////// 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.

   // In JavaScript, variables must be identified with a unique identifier. 

        let blank;

   // The identifier of the variable on the line above is "blank". 

   // There are a few rules in regards to assigning variables' identifiers (in other words, rules for naming variables in JavaScript):

      // 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

      //Rule 2: Names are case sensitive.

          // If you declare a variable with the identifier myVariable, it cannot be accessed by saying myvariable or myVARIABLE

      //Rule 3: Reserved words cannot be used as names. 
          // There are a few words used in JS that perform specific actions, such as the let keyword that tells the computer we are declaring a new variable

          // Reserved words include JavaScript keywords, and all of the words included here:

      // The following are examples of acceptable identifiers(aka names):
         let monthlyRent = 600;
         let carNote$ = 300;
         let home_address = "789 Super Fun Ln.";
         let businessAddress2 = "326 City Rd.";
         let lunchTotal$ = 11.49;

      // You probably noticed that the examples above are assigned to different types of data, as some store numbers while others store text. 
      // Next, we are going to discuss the different data types a variable can store.

///////////////////////// Exercises /////////////////////////
// Declare new variables and convert the following phrases to an appropriate variable name, using camel casing and other naming conventions:
  // 1. annual income
  // 2. bills to be paid
  // 3. number of vacation days left
  // 4. week one
  // 5. week two
  // 6. week six 

//Extra Exercises:

//1. Which of these variable names would work? (Can be more than one!) You can write yes or no under each variable (remember to write it as a comment!)

// a) let myName = "John";

// b) let -myName = "John";

// c) let $myName = "John";

// d) let _myName = "John";

// e) let .myName = "John";

//2. Come up with a variable name to store your favorite color. Make sure your name makes sense. Use the let keyword, name the variable, and then assign it your favorite color in quotes. 

//3. Which of the follow variables use camelCase correctly? (Can be more than one) Again, write yes or no under each variable as a comment. 

// a) let thisisMyVariable = "variable";

// b) let thisIsMyVariable = "variable";

// c) let thisIsAnotherVariable = "another variable";

// d) let ThisIsAnotherVariable = "another variable";

// e) let THISisanothervariable = "another variable";