So you've decided to learn how to program in C++ but don't know where to start. Here's a brief overview of how you can get started.Get a C++ CompilerThis is the first step you'd want to do before starting learning to program in C++. There are good free C++ compilers ... Read More

If we export the data from a table having NULL values then MySQL will store \N in CSV file for the record MySQL table having NULL values. It can be illustrated with the help of the following example −ExampleSuppose if we want to export the values of the table ‘student_info’ ... Read More

To update HTML5 canvas rectangle on hover, try to run the following code:var canvas = document.getElementById("myCanvas"); var context = canvas.getContext("2d"); context.rect(20,20,150,100); context.stroke(); $(canvas).hover(function(e){    context.fillStyle = blue;    context.fill(); });

Use the following to check the compatibility of the HTML5 tag :var $myEL = $(''); $myEL.appendTo('body'); var bgColor = $myEL.css('backgroundColor'); if (/rgb\(255\, 255\, 0\)/.test(bgColor))    return true; else    return false;

The MediaStream represents synchronized streams of media. If there is no audio tracks, it returns an empty array and it will check video stream, if webcam connected, stream.getVideoTracks() returns an array of one MediaStreamTrack representing the stream from the webcam.function gotStream(stream) {    window.AudioContext = window.AudioContext || window.webkitAudioContext;    var ... Read More

To handle the mousedown and mouseup event with HTML5 Canvas,var mouseDown = false; // for mousedown canvas1.onmousedown = function(event){    dragOffset.x = event.x - mainLayer.trans.x;    dragOffset.y = event.y - mainLayer.trans.y;    mouseDown = true; } // for mouseup canvas1.onmouseup = function(event){    if(mouseDown) mouseClick(eevent    mouseDown = false; }

IE9 does not support File APIIF10 started supported File APIAn example of that would be drag and drop. Now HTML 5 came up with a Drag and Drop (DnD) API that brings native DnD support to the browser making it much easier to code up.         ... Read More

The schema.org SiteNavigationElement extends WebPageElement. It is used to mark-up links that would make amazing contextual links.                    Home page                              My demo page          

You can make use of setTimeout and clearTimeOut functions. In order to trace the activity of the user, you can either make use of mouse move event or key press event or even both.ExampleYou can reset the timer on the occurrence of either of the two events.document.onmousemove = timeOut; document.onkeypress ... Read More

You can just define a character of 100 bytes and move your variable to that character. Please find the below code as example.Example