Re: Going to Haxe. Nim In Action book available.

[_tulayang]

@wulfklaue

Oh! ECMAScript2015, ECMAScript7 and nodejs are very popular now. I think you 
just not understand JavaScript. You should have a look at:
    
    
    import fs from "fs";
    
    const stateNone  = 0;
    const stateRead  = 1;
    const stateWrite = 2;
    
    class IO {
      constructor() {
        this.state = stateNone;
      }
      
      async read(path) {
        var io = this;
        return new Promise(function (complete, fail) {
          io.state = stateRead;
          fs.readFile(path, function (err, data) {
            if (err) {
              fail(err);
            } else {
              io.state = stateNone;
              complete(data);
            }
          })
        })
      }
      
      async write(path, data) {
        var io = this;
        return new Promise(function (complete, fail) {
          io.state = stateWrite;
          fs.writeFile(path, data, function (err) {
            if (err) {
              fail(err);
            } else {
              io.state = stateNone;
              complete();
            }
          })
        })
      }
    }
    
    (async function main() {
      var io = new IO();
      try {
        var data = await io.read("/home/user/test1.txt");
        await io.write("/home/user/test2.txt", data);
      } catch (e) {
        console.log("Error: ", e);
        console.log("IO state: ", io.state);
      }
    } ());