It is bad, but...
$.each way:
var days = 10;
$.each(new Array(days), function(i, _) {
alert(i);
});
for keyword way:
(function(iter) {
for (var i = 0; i < days; ++i) {
iter(i);
}
})(function(i) {
alert(i);
});
Custom jQuery plugin $.loop way:
;(function($) {
$.loop = function(num, iter) {
for (var i = 0; i < num; ++i) {
iter(i);
}
};
})(jQuery);
Usage of $.loop in your case:
var days = 10;
$.loop(days, function(i) {
alert(i);
});
Performance test says that $.each is slower than other, but for solving 99% of problems it is no matter.
Single-line way in your case is:
$.loop(days, alert);
Or:
$.each(new Array(days), alert);
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