Add feature import export

[Hana]

Add the possibility of import export js file

export function hello(){
    console.log("hello world")
}

import {hello} from "./imported.js"

hello()

[Joao da Silva]

This is already supported and should work. Did you get any problems trying to run that code?

[Hana]

Oh ok, my problem it's because nodejs can get the content with only "./file", the .js is optional ^^' and windowjs does not do so

[Joao da Silva]

Thanks for confirming.

The error message could give a hint: if the file can't be read and the filename doesn't end in .js nor in .mjs then mention that the extension is required.

This is a good first bug; the lines to be fixed are here:

windowjs/src/js.cc

Line 466 in ccf3433

 if (!ReadFile(path, &content, &error)) {