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bethrobsonbethrobson
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adding code for chapter 7
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‎chapter7/duck.html‎

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<!doctype html>
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<html lang="en">
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<head>
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<title>Ducks</title>
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<meta charset="utf-8">
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<script>
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function Duck(sound) {
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this.sound = sound;
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this.quack = function() {
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console.log(this.sound);
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};
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}
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var toy = new Duck("quack quack");
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toy.quack();
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console.log(typeof toy);
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console.log(toy instanceof Duck);
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</script>
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</head>
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<body>
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</body>
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</html>

‎chapter7/typeof.html‎

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<!doctype html>
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<html lang="en">
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<head>
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<title>Testing typeof</title>
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<meta charset="utf-8">
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<script>
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var test1 = "abcdef";
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var test2 = 123;
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var test3 = true;
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var test4 = {};
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var test5 = [];
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var test6;
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var test7 = {"abcdef": 123};
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var test8 = ["abcdef", 123];
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function test9(){
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return "abcdef"
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};
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var test10 = null;
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console.log(typeof test1);
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console.log(typeof test2);
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console.log(typeof test3);
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console.log(typeof test4);
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console.log(typeof test5);
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console.log(typeof test6);
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console.log(typeof test7);
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console.log(typeof test8);
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console.log(typeof test9);
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console.log(typeof test10);
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</script>
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</head>
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<body>
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</body>
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</html>

‎chapter7/types.html‎

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<!doctype html>
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<html lang="en">
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<head>
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<title>Types</title>
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<meta charset="utf-8">
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<script>
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function lieDetectorTest() {
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var lies = 0;
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var stolenDiamond = { };
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if (stolenDiamond) {
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console.log("You stole the diamond");
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lies++;
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}
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var car = {
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keysInPocket: null
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};
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if (car.keysInPocket) {
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console.log("Uh oh, guess you stole the car!");
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lies++;
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}
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if (car.emptyGasTank) {
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console.log("You drove the car after you stole it!");
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lies++;
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}
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var foundYouAtTheCrimeScene = [ ];
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if (foundYouAtTheCrimeScene) {
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console.log("A sure sign of guilt");
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lies++;
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}
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if (foundYouAtTheCrimeScene[0]) {
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console.log("Caught with a stolen item!");
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lies++;
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}
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var yourName = " ";
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if (yourName) {
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console.log("Guess you lied about your name");
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lies++;
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}
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return lies;
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}
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var numberOfLies = lieDetectorTest();
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console.log("You told " + numberOfLies + " lies!");
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if (numberOfLies >= 3) {
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console.log("Guilty as charged");
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}
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</script>
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</head>
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<body>
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</body>
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</html>

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