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Working with Variables and Data Types in JavaScript

Exercises

  1. Declare three variables—one number and two strings. The number should be 120, and the strings should be “5150” and “Two Hundred Thirty”.

  2. Create a new array with three numbers and two strings or words.

  3. Use the alert() function to display the following string, properly escaped: Steve’s response was “Cool!”

  4. Use Internet Explorer to examine three of your favorite websites, and debug the errors using Interne Explorer tools. Look closely for any JavaScript errors reported. Bonus: Try using Firebug to examine those same three websites.