JavaScript, how to export functions

How to export functions from JavaScript files

In JavaScript, we can divide the program into separate files. How do we make the functions defined in the file available to other files?

You would usually write a function as follows:

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

You can use the following syntax to make it available to any other file:

export default sum

We call itDefault export.

The file that needs the export function will be imported using the following syntax:

import sum from 'myfile'

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