JavaScript variables hold a wide variety of information and can be used with virtually any data type. Here's how to use variables to store numbers, text strings, objects, and more.

If you want to store the number 9 in a variable, you just write 9. Boolean - A boolean variable is one of two things: true or false . This data type is kind of like an on and off switch, so you ...

After adding "y" to "x," JavaScript stores "11.234" in the "z" variable. You can control the number of decimal points that appear in a result by using the "toFixed" function. Instead of adding "x ...