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HTML / HTML Interview questions

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How will you disable all the html elements within a HTML Table?

$('#tableID').find('select,input,textarea').attr('disabled','disabled'); 

When does a body onLoad gets called/executed?

The load event fires at the end of the document loading process. At this point, all of the objects in the document are in the DOM, and all the images and sub-frames have finished loading.

How will you enable all the html elements within an html table?

$('#tableID').find('select,input,textarea').removeAttr('disabled');

Difference between <div> and <span> element.

<div> is a block level element and it helps to group html elements.

<span> is an inline element and it also helps in grouping html elements.

How to display &lt; and &gt; using html without transforming it to & and >?

Escape the & using &amp;.

Change this

<h1>&lt;test-Link &gt;</h1>

To the below.

<h1>&amp;lt;test-link &amp;gt;</h1>

How do I invert/transpose the rows and columns of a HTML table?

Save the below content into a file with .html extension and open it in browser.

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script>

<html>
<head>

</head>
<script>
 $( document ).ready(function() {
$("#tableID").each(function() {
        var $this = $(this);
        var newTransposedRow = [];
        $this.find("tr").each(function(){
            var i = 0;
            $(this).find("td").each(function(){
                i++;
                if(newTransposedRow[i] === undefined) { newTransposedRow[i] = $("<tr></tr>"); }
                newTransposedRow[i].append($(this));
            });
        });
        $this.find("tr").remove();
        $.each(newTransposedRow, function(){
            $this.append(this);
        });
    });
});
</script>
<body>
<table id="tableID">

    <tr>
        <td>R1C1</td>
        <td>R1C2</td>
        <td>R1C3</td>
    </tr>
    <tr>
        <td>R2C1</td>
        <td>R2C2</td>
        <td>R2C3</td>
    </tr>
   
</table>


</body>
</html>

HTML 5: How do you find the user's location or position?

The HTML Geolocation API is used to get the geographical position of a user.

Since this could possibly compromise user's privacy, the position is not available unless the user approves it.

The getCurrentPosition() method is used to get the user's position.

<html>
<head>
<script>
function getLocation() {
    if (navigator.geolocation) {
        navigator.geolocation.getCurrentPosition(showPosition);
    } else {
       alert ("Geolocation is not supported by this browser.");
    }
}
function showPosition(position) {
    alert( "Latitude: " + position.coords.latitude + 
    "\nLongitude: " + position.coords.longitude); 
}
</script>

</head>
<body onload = 'getLocation()'></body>
</html>

What are the common CSS pseudo classes for formatting links.
A link that hasn't been visited. Blue is the default color. visited A link that has been visited. Purple is the default color. :hover An element with the mouse hovering over it. Hover has no default color. :focus An element like a link or form control that has the focus. :active An element that's currently active. Red is the default color. The properties for removing underlines and borders
NameDescription
:link.
a:link {
 color: green;
}
a:hover, a:focus {
 text-decoration: none;
 font-size: 110%;
}
What are the properties for removing underlines and borders of link?

text-decoration : To remove the underlining from a link, set this to none.

border-style: To remove the border from an image link, set this to none. You can also set the border-width property to 0.

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