JacobWay

Install PostgreSQL:
Install PostgreSQL 9.6 via homebrew.


Before installation:
Uninstall PostgreSQL if you have installed it by homebrew with command: brew uninstall postgres.
Delete the database cluster, usually locates on /usr/local/var/postgres, or /usr/local/pgsql/data. 
The command is: rm -rf /usr/local/var/postgres, or rm -rf /usr/local/pgsql/data.

JacobWay

{
class Message {
    doCallback(cb){
        cb("!!");
    }
    doAnother(){
        console.log("??", this); // Message
    }
    doSomething() {
        this.doCallback(function(message){

JacobWay

// create event
var evt = document.createEvent("Event");

// initializing the event
evt.initEvent("anyName", true, true);

// add event handler
document.addEventListener("anyName", function(e){
  // your handler logic
  console.log("e.target: ", e.target);

JacobWay

function Foo(){
  return this;
}

var fooThis = Foo();  // ? fooThis = 
var fooThat = new Foo();  // ? fooThat = 

JacobWay

# Compiled source #
###################
*.com
*.class
*.dll
*.exe
*.o
*.so

# Packages #