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POget time when user presses the key
 

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    <p>I'll really appreciate it, if someone could help me out, I've been stuck on this problem for a few days, google, and other stackoverflow answers just doesn't seem to help.</p> <p>I have a web application that has an analog clock, from the clock I need to be able to get the time when the user presses the keyboard and compare that to the time they entered, I can get the time they entered through a form but I'm having trouble understanding how I can get the actual keypress time.</p> <p>Just to make sure that I'm on the right track, will I be able to put in a for loop into each task page for example: </p> <pre><code> var i = 0; for (i = 0; i &lt; 40; i ++){ //Add user input from form into an array //Add actual key press time in an array //Show next task link after the 40 trials are complete document.getElementById('nextTask').style.visibility="visible"; document.getElementById('nextTask').style.display="block"; } </code></pre> <p>There are 120 trials, in 3 separate tasks.</p> <p>1 of them has no sound. </p> <p>The other 2 has sound, but only 50% and 75% of the time a beep will occur and at other times it wont.. (I'm still struggling on that part.. but I'll tackle that later lol.)</p> <p>One last note, would I be able to run 40 trials using just one webpage, or would I have to create 40 X 3 separate pages, for the whole task. </p> <p>I created a JSFiddle, I'm still new to the whole idea, so let me know if I've made a mistake. <a href="http://jsfiddle.net/StrangeLondoner/ymXeG/" rel="nofollow">http://jsfiddle.net/StrangeLondoner/ymXeG/</a> </p> <p>The clock stops after a random number of milliseconds, the two keys to press are s and k. </p> <p>I'd like to thank you for your time reading this question and hopefully helping me get a solution somehow. </p> <p><strong>Finished</strong></p> <p>Hey guys, thanks for your input. I thought I'd let you guys know what I did, and if anyone else is searching for a similar answer. It may be a little primitive, but I created an identical counter, and ran simultaneously with the the clock, I know perforamance wise this isn't ideal, but I guess this will have to do until I come up with a better solution. I have to get it working somehow I suppose. </p> <p>Thanks Anyway. I'll update this if I can somehow find a better solution.</p>
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    1. COYou can construct a JavaScript `Date` object and get the time from it. Just `var timestamp = new Date().getTime();`
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    2. COIt's not super-accurate of course.
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    3. CO@Pointy the problem is I need the time from the clock, since the clock does 1 revolution per 2.5 seconds
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