Which of the following code snippets is more effective? Why is it so?

<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>

Consider an HTML form with a checkbox and a text field. When data is entered and the Enter key is pressed, the data seems to be lost before the user can click on the button that calls the processing function. How would you correct this programatically?

Which is not a JavaScript event?

What is the error in the statement var charConvert = toCharCode('x')?

How will you change the color of the paragraph text to blue on placing the mouse over the paragraph, and reset it back when the mouse leaves the paragraph?

Which of the following is TRUE about iFrame?

What is the color of “Rainbow” in the following code? <style> div {color:blue !important;} </style> <div id="id" color="green" style="color:red !important;">Rainbow</div> <script> document.getElementById('id').style.color = 'yellow !important'; </script>

Which of the following is TRUE about replaceChild(Node1, Node2)?

Which of the following has the higest priority in CSS?

What does document.body.nodeType returns?