faster js iterations

by mmansion

JavaScript

//count down to zero more efficient because faster to compare values to zero

for(var i = 7; --i;) {
    document.write(i);
}

document.write('<br>');


for(var j = 7; j--;) {
  document.write(j);
}


document.write('<br>');

var k = 3;

while(k--) {

   document.write(k);

}