He has experience in range of programming languages and extensive expertise in Python, HTML, CSS, and JavaScript. What's Next?Ībout the author: James Gallagher is a self-taught programmer and the technical content manager at Career Karma. If you’re looking for more learning resources and guidance on top JavaScript courses, read ourĪbout us: Career Karma is a platform designed to help job seekers find, research, and connect with job training programs to advance their careers. Now you’re ready to start using conditional operators like a pro! In this guide, we discussed how to use the Every programming language uses conditional statements to some degree to provide logic in the code. Statements allow us to determine which code in a program should be run depending on certain factors being met. Because our user’s age is 27, the code in that block executes. We then check if the user is between the ages of 18 and 64. After that, we check if our user is between the ages of 11 and 17. We check if a user’s age is equal to 10 or is below 10. Here’s an example of a program that will check a customer’s age and return the price they should pay for a ticket: Say you are running a movie theater and want to give customers different prices depending on their age. Within each statement you should specify the code to be executed if that particular condition is met.Ĭonditional expression in action. You can use as many else…if statements as you want with an if statement. Our program will run all of the statements in order-starting with condition one-and if none of the statements are true, the code within our Code will run if all the above conditions are false Code will run if condition two is true Code will run if condition one is true Here’s the syntax for an if statement in JavaScript: The contents of an if and else statement appear enclosed within curly braces. After the if statement, you should specify a condition-or a set of conditions-in regular brackets. If the statement is false, nothing happens. An if statement will only run if the statement is true. Statement evaluates whether a statement is true or false. Let’s explore how we can use this same logic in JavaScript. If something happens, then something else should happen. The key to all of these examples is that they use the word Submit a form if every field has been filled out.ĭisplay a list of holiday discounts if a user is signed in. Here are a few scenarios where using a conditional statement would be useful:Ĭheck if a user’s password matches the one on file.Ĭheck if a user has an account listed under a certain email address. You’ll need to use a conditional statement to run code if a particular condition is met. In this tutorial, we’re going to look at how to useĪs we’ve discussed, conditional statements are an important part of every programming language. , and you consent to receive offers and opportunities from Career Karma by telephone, text message, and email.
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