Question:Which of the following code snippets is more efficient and why?
<script language="JavaScript">
        for(i=0;i<document.images.length;i++)
                document.images[i].src="blank.gif"; 
</script> 

<script language="JavaScript">
        var theimages = document.images;
        for(i=0;i<theimages.length;i++)
                theimages[i].src="blank.gif"
</script>
 

A Both are equally efficient 
B The first code is more efficient as it contains less code 
C The first code is more efficient as it employs object caching 
D The second code is more efficient as it employs object caching 

+ Answer
D 

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Suman Chowdhury

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