clear entire canvas code example

Example 1: Javascript clear canvas

var canvas = document.getElementById("myCanvasID");
var context = canvas.getContext('2d');
context.clearRect(0, 0, canvas.width, canvas.height); //clear html5 canvas

Example 2: resetting canvas html

var canvas = document.getElementById('myCanvas');
var context = canvas.getContext('2d');
context.clearRect(0, 0, canvas.width, canvas.height);