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Components
Bx Photo slider example program Simple pagination in jquery example Jquery pagination with next and previous buttons Accordion function using jquery Search range of html content by id using jquery Photo slider with jquery example Using slide function with + and - sign .
Components [cont'd]
Using slide function with down and right arrows
Jquery Syntax
How to get url of current page in jquery How to limit the number of words in paragraph by jquery
Errors in jquery
Nth child jquery not working sharepoint Event.returnValue is deprecated. Please use the standard event.preventDefault() instead
Jquery functions
How to count number of divs in jquery How to select number of elements with next() How to convert integer number from float in jquery How to select number of previous divs with prev() How to show div in jquery How to hide div in jquery How to show div on mouseover in jquery
Jquery functions [cont'd]
How to show div on hover in jquery How to hide div using jquery on page load How to remove div using jquery How to clear content in jquery How to select parent element in jquery How to addclass and removeclass in jquery How to run jquery when page loads
Jquery functions [cont'd]
How to use jquery to click on a element How to add class in jquery How to remove class in jquery For loop in jquery example For each in jquery example On in jquery example How to call a jquery function on keypress
Jquery functions [cont'd]
Jquery bind click event example If in jquery example This in jquery example Toggle in jquery example Mouseup example jquery Jquery mousedown example How to select child elements in jquery
Jquery functions [cont'd]
How to select first child in jquery How to select last child in jquery How to select sibling in jquery How to select parent of parent in jquery How to give css in jquery How to give multiple css in jquery Slideup in jquery example
Jquery functions [cont'd]
Slidedown in jquery example Slideup and slidedown in jquery examples How to show hide div in jquery How to select next element in jquery How to select previous element in jquery How to add html in jquery How to add text in jquery
Jquery functions [cont'd]
Append in jquery example Prepend in jquery example Append and prepend in jquery example Fadein in jquery example Fadeout jquery example
How to select first child in jquery in Jquery functions of JQuery Examples
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Hints 
.first() used to select the first element from the children which have the same class name.In the following example, when you click the click here first child will change into red color.
Example code
<html>

<head>
    <title>HTML-JQuery</title>
    <script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"></script>

    <script type="text/javascript">
        $(function () {
            $("div.exam").click(function () {
                $("div.exam div.num").first().css("color", "red");
            });
        });
    </script>
</head>

<body>
    <div class="exam">Click here to apply css red color to first element
        <div class="num">first</div>
        <div class="num">second</div>
        <div class="num">third</div>
        <div class="num">fourth</div>
        <div class="num">last</div>
    </div>
</body>

</html>
Demo 
[click here to see demo]
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Jquery functions of JQuery Examples
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