Add files via upload

abid-siddiqui · Mar 22, 2017 · 1e5ff84 · 1e5ff84
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diff --git a/JSON_input.js b/JSON_input.js
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+var myJSON = '{ "fname": "Andy", "lname": "Mellon", "age": 46, "city":"Jackson", "state": "NJ" }';
+var myObj = JSON.parse(myJSON);
+console.log(myObj.fname + " " + myObj.lname + " is from " + myObj.city + ", " + myObj.state) ;
diff --git a/JSON_local.htm b/JSON_local.htm
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+<!DOCTYPE html>
+<html>
+<body>
+
+<h2>Store and retreive data from local storage.</h2>
+
+<p id="demo"></p>
+
+<script>
+var myObj, myJSON, text, obj;
+
+//Storing data:
+myObj = { "name":"John", "age":31, "city":"New York" };
+myJSON = JSON.stringify(myObj);
+localStorage.setItem("testJSON", myJSON);
+
+//Retrieving data:
+text = localStorage.getItem("testJSON");
+obj = JSON.parse(text);
+document.getElementById("demo").innerHTML = obj.name;
+</script>
+
+</body>
+</html>
diff --git a/JSON_localstorage.js b/JSON_localstorage.js
@@ -0,0 +1,11 @@
+
+var myObj, myJSON, text, obj;
+//Storing data:
+myObj = '{ "fname": "Andy", "lname": "Mellon", "age": 46, "city":"Jackson", "state": "NJ" }';
+myJSON = JSON.stringify(myObj);
+localStorage.setItem("testJSON", myJSON);
+
+//Retrieving data:
+text = localStorage.getItem("testJSON");
+obj = JSON.parse(text);
+console.log(obj.fname + " " + obj.lname);
diff --git a/JS_byRef_byVal.js b/JS_byRef_byVal.js
@@ -0,0 +1,19 @@
+function f(a,b,c) {
+    // Argument a is re-assigned to a new value.
+    // The object or primitive referenced by the original a is unchanged.
+    a = 3;
+    // Calling b.push changes its properties - it adds
+    // a new property b[b.length] with the value "foo".
+    // So the object referenced by b has been changed.
+    console.log(b[1]);
+    b[1] = "meany";  
+        // The "first" property of argument c has been changed.
+    // So the object referenced by c has been changed (unless c is a primitive)
+    c.first = false;
+}
+
+var x = 4;
+var y = ["eeny", "miny", "mo"];
+var z = {first: true};
+f(x,y,z);
+console.log(x, y, z.first); // 4, ["eeny", "miny", "mo", "foo"], false
diff --git a/PersonObjectProto.js b/PersonObjectProto.js
@@ -0,0 +1,17 @@
+function Person(first, last, age, eyeColor, nationality)  {
+	this.firstName = first;
+	this.lastName = last;
+	this.age = age;
+	this.eyeColor = eyeColor;
+	this.nationality = nationality;
+	this.name = function() {
+		return this.firstName + " " + this.lastName;  }
+}
+
+var myFather = new Person("James", "Mellon",70, "Brown", "English");
+var myMother = new Person("Diane", "Mellon",70, "Brown", "German");
+
+console.log(myFather.name());
+console.log("is " + myFather.nationality);
+var test = ("a" == false)? "true": "false";
+console.log("Test result is " + test);
diff --git a/Point_prototype.js b/Point_prototype.js
@@ -0,0 +1,20 @@
+function abc() { console.log("Hello World")}();
+
+
+function Point(x_pt,y_pt,z_pt,name) {
+	this.x  = x_pt;
+	this.y = y_pt;
+	this.z = z_pt;
+	this.pt_name = name;
+    this.dist = function(input) {
+    	var x1 = this.x - input.x;
+    	var y1 = this.y - input.y;
+    	var z1 = this.z - input.z;
+    	return x1 + y1 + z1;
+    }
+}
+
+var myOrigin = new Point(0,0,0,"origin");
+var my2ndPt = new Point(10,20,10,"2nd Pt");
+console.log("the distance between pts is " +myOrigin.dist(my2ndPt));
+abc();
diff --git a/Squares.js b/Squares.js
@@ -0,0 +1,28 @@
+
+var x = [ 1,2,3,4,5,6,7];
+var x2 = [];
+var y, y_end;
+
+var interations = 1000000;
+console.time("For loop");
+for(var i = 0; i < x.length; i++)
+{
+	console.log(x[i]*x[i]);
+}	
+console.timeEnd("For loop");
+//y_end = performance.now();
+
+
+console.time("Foreach loop");
+x.forEach(function (a) {
+	console.log(a*a);
+});
+console.timeEnd("Foreach loop");
+
+console.time("Map loop");
+x.map(function (a) {
+	console.log(a*a);
+});
+console.timeEnd("Map loop");
+
+//var y_end = performance.now();
diff --git a/TimeTest.js b/TimeTest.js
@@ -0,0 +1,30 @@
+a = [1,2,3,4,5,6,7];
+
+function doSomething() {
+	for (var x=0; x < a.length; x++)
+		console.log(a[x]*a[x])
+}
+
+function doSomethingFast() {
+	a.forEach(function(x) { 
+		console.log(x*x); });
+}
+
+function doSomethingFaster() {
+	a.map(function(x) {
+		console.log(x*x); 
+	});
+}
+
+
+console.time("Do Something");
+doSomething();
+console.timeEnd("Do Something"); 
+
+console.time("Do SomethingFast");
+doSomethingFast();
+console.timeEnd("Do SomethingFast"); 
+
+console.time("Do Something Faster");
+doSomethingFaster();
+console.timeEnd("Do Something Faster"); 
diff --git a/test.js b/test.js
@@ -0,0 +1,4 @@
+console.log('hi');
+setTimeout(function() { console.log('my name is ');
+}, 5000);
+console.log("zayan");