brackets and dots

braks-n-dots.js

// an example to learn about dots and brackets
// below are 6 test cases that work
// try writing some that break, find out what's happening

// https://goo.gl/ezGgh5 - pythontutor
var og = {first: 'fifty', last: 'cent'};

var curtis = 'first';
var jackson = 'last';

console.log(og.first);
console.log(og.last);

console.log(og[curtis]);
console.log(og[jackson]);

console.log(og["first"]);
console.log(og["last"]);

console.log(og[0]);
console.log(og[1]);


// --------------------------------

var person = {
  name: 'John', 
  lastName: 'Smith', 
  age: 32,
  key: 0
};

for (let key in person){
  console.log(person[key]);
  console.log(key)
  console.log(person.key)
  console.log("--------")
}

for (let mike in person){
  console.log(person[mike]);
  console.log(mike)
  console.log(person.mike)
  console.log("--------")
}