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improved inline code readability
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falsarella
falsarella
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If you want a terse way to write a fast loop and you can iterate in reverse:

for (var i=myArray.length;i--;){
  var item=myArray[i];
}

This has the benefit of caching the length (similar to for (var i=0, len=myArray.length;i<len;++ilength; i<len; ++i) and unlike for (var i=0;i<myArrayi=0; i<myArray.length;++ilength; ++i)) while being fewer characters to type.

There are even some times when you ought to iterate in reverse, such as when iterating over a live NodeList where you plan on removing items from the DOM during iteration.

If you want a terse way to write a fast loop and you can iterate in reverse:

for (var i=myArray.length;i--;){
  var item=myArray[i];
}

This has the benefit of caching the length (similar to for (var i=0,len=myArray.length;i<len;++i) and unlike for (var i=0;i<myArray.length;++i)) while being fewer characters to type.

There are even some times when you ought to iterate in reverse, such as when iterating over a live NodeList where you plan on removing items from the DOM during iteration.

If you want a terse way to write a fast loop and you can iterate in reverse:

for (var i=myArray.length;i--;){
  var item=myArray[i];
}

This has the benefit of caching the length (similar to for (var i=0, len=myArray.length; i<len; ++i) and unlike for (var i=0; i<myArray.length; ++i)) while being fewer characters to type.

There are even some times when you ought to iterate in reverse, such as when iterating over a live NodeList where you plan on removing items from the DOM during iteration.

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Phrogz
Phrogz
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If you want a terse way to write a fast loop and you can iterate in reverse:

for (var i=myArray.length;i--;){
  var item=myArray[i];
}

This has the benefit of caching the length (similar to for (var i=0,len=myArray.length;i<len;++i) and unlike for (var i=0;i<myArray.length;++i)) while being fewer characters to type.

There are even some times when you ought to iterate in reverse, such as when iterating over a live NodeList where you plan on removing items from the DOM during iteration.