This is because switch places emphasis on the possible values instead of the conditions for the values. There’s barely any code, and it’s refreshingly minimal. It is just like else if statement that we have learned in previous. Now you can reload any website without JavaScript running. The JavaScript switch statement is used to execute one code from multiple expressions. A matched case will run until a break (or the end of the switch statement) is found, so you could.
When the toolbar icon color is green, JavaScript is allowed in the browser, and when it turns red, it means JavaScript is denied globally. Use the fall-through feature of the switch statement. Using if/else is really verbose, and contains a lot of unnecessary boilerplate that switch can handle with ease: let dayIndex = new Date().getDay() JavaScript Switch ONOFF is an addon that helps you quickly turn the JavaScript engine in your browser ON or OFF via the toolbar button. Javascript Switch demo and styling with our without description. Let’s look at an example using if/else, and then we’ll look at the switch equivalent for comparison: let dayIndex = new Date().getDay() ĭid you know? JavaScript doesn’t have a native method to get the day of the week!
In this article, you’ll learn how to use switch and hopefully gain the intuition to know when you should use it.Ī telltale sign to use switch is when you have a lot of consecutive if/else statements. The switch statement is indispensable for certain programming tasks.