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JavaScript Step by Step by Steve Suehring

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Chapter 6. Controlling Flow with Conditionals and Loops

After reading this chapter, you'll be able to

  • Understand the different types of conditional statements in JavaScript.

  • Use the if else conditional statement to control code execution.

  • Use the switch statement.

  • Understand the different types of loop control structures in JavaScript.

  • Use a while loop and a do…while loop to execute code repeatedly.

  • Use different types of for loops to iterate through ranges of values.

If (and how)

The if statement is used to determine which way to go within a program or which code to execute based on one or more conditions. If you've ever booked a flight on the Internet, you know about making decisions. You might want to go on a quick weekend getaway, for example, so ...

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