Exporting a Function in JavaScript

In JavaScript, it is common to divide a program into separate files. So, when we define a function in one file, how can we make it accessible to other files?

To export a function, you can define it like this:

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function sum(a, b) {
  return a + b;
}

To make this function available in other files, you can use the following syntax to export it as the default export:

1	export default sum;

This is referred to as a default export.

In the files that require this exported function, you can import it using the following syntax:

1	import sum from 'myfile';

By using this approach, you can easily share and reuse functions across multiple JavaScript files.

Tags: JavaScript, export function, default export, import