html5examples/HTML5 - Beginners - localStorage.html at master · Pakz001/html5examples · GitHub

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<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width" />
</head>
<body>
  <div id="test"></div>
<canvas id="myCanvas" width="320" height="240" style="border:1px solid #d3d3d3;">
Use different browser.
</canvas>
<script>
	var c=document.getElementById("myCanvas");
	var ctx=c.getContext("2d");

	// our game score
	score = 0;

	// into the local storage.
	// local storage stays on the device(*)
	// It stores strings. Can be large(parsing data..)
	// Enable the line below to save the score
	//localStorage.score = 100;
	score = localStorage.score;

	// the localStorage followed by a variable.
	// use localStorage.clear() to remove everything.
	// localStorage.removeItem("score");
	// removes this specific 'score' data.
	// sessionStorage.variable
	// holds the variables until the page(game) is closed.


	gameloop=setInterval(doGameLoop,16);

	function doGameLoop(){
		myCanvas.height = window.innerHeight-32;
		myCanvas.width = window.innerWidth-32;
		ctx.fillStyle="rgb(0,0,0)";
		ctx.fillRect(0,0,c.width,c.height);
		ctx.fillStyle="rgb(255,255,255)";
		// draw the score on the screen.
		ctx.fillText(score,10,10);
	}
</script>
</body>
</html>