Add examples

tshemsedinov · tshemsedinov · commit 175b1001d49a · 2017-11-09T23:49:38.000+02:00
diff --git a/JavaScript/1-prototype.js b/JavaScript/1-prototype.js
@@ -0,0 +1,31 @@
+'use strict';
+
+const util = require('util');
+
+function Rect(x, y, width, height) {
+  this.x = x;
+  this.y = y;
+  this.width = width;
+  this.height = height;
+}
+
+Rect.prototype.toString = function() {
+  return `[${this.x}, ${this.y}, ${this.width}, ${this.height}]`;
+};
+
+function Square(x, y, side) {
+  Rect.call(this, x, y, side, side);
+}
+
+util.inherits(Square, Rect);
+
+// Square.prototype = Object.create(Rect.prototype);
+// Square.prototype.constructor = Square;
+
+// Square.prototype = new Rect();
+// Square.prototype.constructor = Square;
+
+// Object.setPrototypeOf(Square.prototype, Rect.prototype);
+
+const p1 = new Square(10, 20, 50);
+console.log(p1.toString());
diff --git a/JavaScript/2-class.js b/JavaScript/2-class.js
@@ -0,0 +1,23 @@
+'use strict';
+
+class Rect {
+  constructor(x, y, width, height) {
+    this.x = x;
+    this.y = y;
+    this.width = width;
+    this.height = height;
+  }
+
+  toString() {
+    return `[${this.x}, ${this.y}, ${this.width}, ${this.height}]`;
+  }
+}
+
+class Square extends Rect {
+  constructor(x, y, side) {
+    super(x, y, side, side);
+  }
+}
+
+const p1 = new Square(10, 20, 50);
+console.log(p1.toString());
diff --git a/JavaScript/3-function.js b/JavaScript/3-function.js
@@ -0,0 +1,15 @@
+'use strict';
+
+const util = require('util');
+
+const rect = (x, y, width, height) => {
+  return {
+    x, y, width, height,
+    toString: () => `[${x}, ${y}, ${width}, ${height}]`
+  };
+};
+
+const square = (x, y, side) => rect(x, y, side, side);
+
+const p1 = square(10, 20, 50);
+console.log(p1.toString());
