However, a good rule of thumb is to call functions when you need to execute a certain block of code multiple times or when you need to perform a task that can be abstracted away into a function.įor example, let’s say you have a website with a navigation bar. It depends on how you’ve structured your code and what you’re trying to achieve. ![]() There really isn’t a definitive answer to this question. When Should You Call a Function in Javascript? ![]() This is a very simple example, but you can use this same syntax to call functions with more complex logic. MyFunction('Hello, world!') // prints 'Hello, world!' to the consoleĪs you can see, we just pass in the message that we want to print as an argument to our function.
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