Tutorial Javascript Function. Functions are one of the fundamental building blocks in JavaScript. Functions are a great way to store your code in reusable pieces of Javascript code that can be run.
Use the keyword function followed by the name of the function. In this tutorial you will learn how to define and call a function in JavaScript. You can call that function from within your code.
JavaScript functions are the main blocks of code designed to perform particular tasks.
Learn about js array functions, JavaScript string functions, JavaScript number functions, and JavaScript functions within functions.
You can use JavaScript's built-in functions, or create your own. Functions are one of the most useful features of JavaScript. A function (also known as a For example, take JavaScript's built-in alert() function.
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