Javascript Acceleration

Posted by Vijay Srini

Sep 11, 2009

Run this program, and watch the color change accelerate.

 <html> <head> <script type="text/javascript"> var c=-1; var tmr; ntimer=1000; var ArrColor=new Array(); ArrColor[0]="green"; ArrColor[1]="blue"; ArrColor[2]="red"; ArrColor[3]="#ffffff"; function showpos() { if(c==3) c=0; else c++; if(ntimer<=5) ntimer=1000; else ntimer = ntimer-5; document.body.style.backgroundColor=ArrColor[c]; clearTimeout(tmr); tmr=setTimeout("showpos()", ntimer); } tmr=setTimeout("showpos()", ntimer); </script> </head> <body> Run this program, and watch it accelerate, slowly and slowly. </body> </html>

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