Testing if something is hidden with jQuery

In jQuery, it is possible to toggle the visibility of an element. You can use the functions .hide(),.show() or .toggle().

How you would test if an element has been hidden or shown using jQuery?

As, the question refers to a single element, this code might be more suitable:

$(element).is(":visible") // Checks for display:[none|block], ignores visible:[true|false]

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Dynamically create a accordion by java script and jquery

Suppose , you have to dynamically get 10 accordion or any number of accordion , there are mainly two solution : whether you create a all accordion by manually or you create that accordion dynamically .



First all create a div with any id , i create a div with accordion id .


            <div id="accordion">
            </div>

   
 Second add script to generate dynamically accordion .


   <script type="text/javascript">

        $(document).ready(function () {     
            BindEnvironments();
        });


 function BindEnvironments() {

            var text = $("#accordion");
            for (var i = 0; i < 10; i++) {
                var content = '<h5><a href="#" id="hf' + i + '" >' + i + '</a></h5>';
                content += '<div id="dv' + i + '">AAA</div> ';
                $("#accordion").append(content);
            }
            $("#accordion").accordion({
                collapsible: false,
                autoHeight: false,
                active: -1
            });
        }

</script>



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Regular Expression For Mobile validation

         Hi , regular expression is a text matching mechanism . suppose you want to validate whether given input to textbox is mobile number or not? , then regular expression is good way.


         To validate mobile like(+9548508412 or 9548508412 or  95485084121 ) , means if you want that mobile number should be at least 10 digit long and  '+' is optional ,  you can use these regular expression :

\+?\d{10,}

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Jquery

What is jQuery?

• A framework for Client Side JavaScript.
• Frameworks provide useful alternatives for common programming tasks, creating functionality which may not be available or cumbersome to use within a language.
• An open source project, maintained by a group of developers, with a very active support base and thorough, well written documentation.
• jQuery is built on top of JavaScript, a rich and expressive language in its own right.

jQuery Syntax:-

$.func(…); 

or 

$(selector).func1(…).func2(…).funcN(…);

$             jQuery Object, can be used instead of  jQuery

selector   Selector syntax, many different selectors allowed

func        Chainable, most functions return a jQuery object

(…)        Function parameters

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