Merge pull request #2467 from bansalnitish/volume

Added volume example

lib/addons/p5.dom.js

@@ -2176,6 +2176,30 @@
    * @param {Number}            [val] volume between 0.0 and 1.0
    * @return {Number|p5.MediaElement} current volume or p5.MediaElement
    * @method volume
+   *
+   * @example
+   * <div><code>
+   * var ele;
+   * function setup(){
+   *   //p5.MediaElement objects are usually created
+   *   //by calling the createAudio(), createVideo(),
+   *   //and createCapture() functions.
+   *   //In this example we create
+   *   //a new p5.MediaElement via createAudio().
+   *   ele = createAudio('assets/lucky_dragons_-_power_melody.mp3');
+   *   background(250);
+   *   textAlign(CENTER);
+   *   text("Click to Play!", width/2, height/2);
+   * }
+   * function mouseClicked() {
+   *   //Here we call the volume() function
+   *   //on the sound element to set its volume
+   *   //Volume must be between 0.0 and 1.0
+   *   ele.volume(0.2)
+   *   ele.play();
+   *   background(200);
+   *   text("You clicked Play!", width/2, height/2);
+   *  }
    */
   p5.MediaElement.prototype.volume = function(val) {
     if (typeof val === 'undefined') {