JavaScript

CHALLENGE

var foo = {};
var bar = Object.create(foo);

foo.a = 1;

console.log(bar.a);

📄✌️ How to Document Your JavaScript Package You’ve written some useful code, you want to distribute it.. what next? Useful docs! The Deno team demonstrates the value of JSDoc and writing documentation alongside your usual source code. THE DENO TEAM

CHALLENGE

function Animal() {}
const dog = new Animal();
console.log(dog.constructor === Animal);

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📌 https://javascriptweekly.com/issues/688

CHALLENGE

function Shape() {}
function Circle(radius) {}
Circle.prototype = Object.create(Shape.prototype);
const shape = new Shape();
console.log(shape instanceof Circle);

🤟 Execa 9.0: The Better child_process Gets Even Better Less shell-oriented than zx, execa focuses on making executing external commands secure, cross-platform, and easy to debug. v9 lets you make commands iterable so you can process their output on the fly, map/filter both input and output, pipe multiple commands, and more. GitHub repo. EHMICKEY, SORHUS, ET AL.

CHALLENGE

function Animal() {}
function Dog() {}
Dog.prototype = Object.create(Animal.prototype);
const rover = new Dog();
console.log(rover.hasOwnProperty('constructor'));

🏤 Building the most performant web applications with Angular ArmenVardanyan Author of "Modern Angular" Google DevExpert for Angular

CHALLENGE

function Shape() {}

function Circle(radius) {
  this.radius = radius;
}

Circle.prototype = Object.create(Shape.prototype);
Circle.prototype.constructor = Circle;

const shape = new Shape();
const circle = new Circle(5);

console.log(circle instanceof Circle);
console.log(circle instanceof Shape);
console.log(shape instanceof Circle);
console.log(shape instanceof Shape);

😆 ...

CHALLENGE

function Animal() {}

function Dog() {}

Dog.prototype = Object.create(Animal.prototype);

const rover = new Dog();

console.log(rover.constructor === Animal);
console.log(rover.constructor === Dog);
console.log(Dog.prototype.isPrototypeOf(rover));
console.log(Animal.prototype.isPrototypeOf(rover));

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