blah/javascript.html at master · Riceyo/blah · GitHub

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<!doctype html>
<html lang="en">
	<head>
		<meta charset="utf-8" />
		<script>

			document.write("testing \"escape\" character");

			function printLocalVariable() {
				var localVariable = "I am local"; // only available inside this function
				document.write("<br />" + localVariable);
			}

			printLocalVariable();

			//document.write("<br />" + localVariable); // won't work as variable is local to function

			var globalVariable = "I am global";

			document.write("<br />" + globalVariable);

			function passedIn(value) {
				document.write("<br />Passed in: " + value);
			}

			passedIn("test"); // string
			passedIn(1); // number

			function oddOrEven(num) {
				if (num % 2 == 0) { // modulus (remainder) math operator
					return "even";
				} else {
					return "odd";
				}
			}

			var oddNum = 1;
			var evenNum = 2;
			document.write("<br />" + oddNum + " is " + oddOrEven(oddNum));
			document.write("<br />" + evenNum + " is " + oddOrEven(evenNum));

			var num100 = 100;
			num100++ // add one
			document.write("<br />100++ " + num100);

			var num100 = 100;
			num100-- // minus one
			document.write("<br />100-- " + num100);

			for(var loop = 1; loop <= 5; loop++)
			{
				document.write("<br />for loop " + loop)
			}

			var whileloop = 1;
			while(whileloop <= 5)
			{
				document.write("<br />while loop " + whileloop)
				whileloop++;
			}

			var dowhileloop = 1;
			do{
			document.write("<br />do while loop " + dowhileloop);
			dowhileloop++;
			}while(dowhileloop <= 5);

			var dowhileloop = 10;
			do{
			document.write("<br />do while loop " + dowhileloop); // will always run at least once
			dowhileloop++;
			}while(dowhileloop <= 5);

			var numberarray = [1,2,3,4,5];
			var stringarray = ["a","b","c","d","e"];
			var mixedarray = [1,"a"]; // arrays can have different data types
			document.write("<br /> number array 0 - " + numberarray[0]);
			document.write("<br /> string array 0 - " + stringarray[0]);
			document.write("<br /> mixed array 0 - " + mixedarray[0]);
			document.write("<br /> mixed array 1 - " + mixedarray[1]);
			mixedarray.push("pushed") // items can be added
			document.write("<br /> mixed array 2 - " + mixedarray[2]);
			document.write("<br /> mixed array length - " + mixedarray.length);

			var objCarVWGolf = {
				make : "VW"
				,model : "Golf"
				,doors : 3
				,transmission : "auto"
				,parkAssist : function()
				{
					return "PARKING";
				}
			}

			objCarVWGolf.fuel = "Petrol";

			document.write("<br />" + objCarVWGolf.make);
			document.write("<br />" + objCarVWGolf.model);
			document.write("<br />" + objCarVWGolf.parkAssist());
			document.write("<br />" + objCarVWGolf.fuel);

			delete objCarVWGolf.fuel;
			document.write("<br />" + objCarVWGolf.fuel);

			function objCar(make, model, doors, transmission) // constructor function
			{
				this.make = make;
				this.model = model;
				this.doors = doors;
				this.transmission = transmission;
				this.parkAssist = function()
				{
					return "PARKING";
				}
			}

			var car1 = new objCar("VW", "Golf", 3, "auto");
			var car2 = new objCar("Audi", "A3", 3, "auto");

			document.write("<br />" + car1.make + car1.model);
			document.write("<br />" + car2.make + car2.model);

			document.write("<br />" + typeof(car1));
			document.write("<br />" + typeof(car1.make));

			function getElements() {
				// get list of elements with id of blah
				var elementList = document.querySelectorAll('#blah');
				// loop through the list
				for(var loop = 0; loop < elementList.length; loop++) {
					// add an on click event to all of these elements
					elementList[loop].onclick=popUp;
				}
			}

			function popUp() {
				alert('!');
			}

			window.onload=getElements;

			function h1buttClick()
			{
				document.getElementById("h1id").innerHTML="h1 - button clicked";
			}

			function inputbuttClick()
			{
				var enteredText = document.getElementById("inputid").value;
				alert("Entered text - " + enteredText);
			}

			function styleP()
			{
				var pTags = document.getElementsByTagName("p");
				for(var loop = 0; loop <= pTags.length; loop++)
				{
					pTags[loop].style.color = "blue";
				}
			}

			function mouseOverColor()
			{
				mouseOver.style.background = "black";
			}

			function mouseOutColor()
			{
				mouseOver.style.background = "whitesmoke";
			}

		</script>
		<title>
			JavaScript
		</title>
	</head>
	<body>
		<p id="blah">click me popup</p>
		<p id="blah">click me popup</p>
		<p id="blah">click me popup</p>
		<h1 id="h1id">h1</h1>
		<button onClick="h1buttClick()">change h1 text</button>
		<br />
		<br />
		<input id="inputid" placeholder="placeholder" />
		<button onClick="inputbuttClick()">alert</button>
		<br />
		<br />
		<input type="password" placeholder="password" />
		<br />
		<br />
		<button onClick="styleP()">style all p tags</button>
		<p id="mouseOver" style="background:whitesmoke;" onmouseover="mouseOverColor()" onmouseout="mouseOutColor()">mouse over</p>
	</body>
</html>