In JavaScript we can separate a program into separate files. How do we make a function we define in a file available to other files?
You typically write a function, like this:
function sum(a, b) {
return a + b
}
and you can make it available for any other file using this syntax:
export default sum
We call it a default export.
The files that need the function exported will import it using this syntax:
import sum from 'myfile'
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