blarfoon

Contribution License Agreement

Thank you for your interest in contributing to open source software projects (“Projects“) made available by Davide Ceschia or his affiliate.

This Contribution License Agreement (“Agreement”) is agreed to by the party signing below (“You”), sets out the terms governing any source code, object code, bug fixes, configuration changes, tools, specifications, documentation, data, materials, feedback, information or other works of authorship that you submit or have submitted to Davide Ceschia and/or its affiliates (“Davide Ceschia”) for Your contributions to Davide Ceschia open source Projects.

This Agreement is effective as of the latest signature date below, and you agree that the following terms apply to all your past, present and future Submissions.

blarfoon

const myFirstObject = {
  hi: "mom",
  sayHi() {
    console.log("hi " + this.hi);
  },
};

const mySecondObject = Object.create(myFirstObject);

mySecondObject.hi = "medium";

blarfoon

const myFirstObject = {
  hi: "mom",
};
const mySecondObject = Object.create(myFirstObject);

console.log(mySecondObject.hi, mySecondObject.hasOwnProperty("hi")); // > mom false

blarfoon

function myObjectFunc() {
  this.hi = "mom";
}

const myObject = Object.create(myObjectFunc.prototype)
myObjectFunc.call(myObject)

// This will not work as intended!
myObjectFunc.hello = "world";
console.log(myObject); // undefined!

blarfoon

const myObject = {};

console.log(myObject.toString())
// in this case it's the same as calling
console.log(Object.getPrototypeOf(myObject).toString())

blarfoon

function myObjectFunc() {
  this.hi = "mom";
}

const myObject = new myObjectFunc();

// This will not work as intended!
myObjectFunc.hello = "world";
console.log(myObject.hello); // undefined!

blarfoon

const myArray = [1, 2, 3];

Object.defineProperty(myArray, "hi", {
  value: "mom",
});
myArray.hello = "world";
console.log(myArray);

for (const key in myArray) {
  console.log("key:", key);

blarfoon

const myObject = {
  hi: "mom",
};

console.log(myObject.hasOwnProperty("hi")); // > true
let result = Reflect.deleteProperty(myObject, "hi");
console.log(result, myObject.hasOwnProperty("hi")); // > true false

// PAY ATTENTION NOW

blarfoon

const myObject = {
  hi: "mom",
};

console.log(myObject.hasOwnProperty("hi")); // > true
delete myObject.hi;
console.log(myObject.hasOwnProperty("hi")); // > false

// PAY ATTENTION NOW

blarfoon

const myObject = {};

Object.defineProperty(myObject, "hi", {
  value: "mom",
  writable: true, // default: false
  enumerable: true, // default: false
  configurable: true, // default: false
});

console.log(myObject.hi); // > mom