how to define variable in jquery

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梦谈多话
梦谈多话 2021-01-31 09:09

I would like to know how to declare a variable in jQuery

The code I am currently using is

$.name = \'anirudha\';
alert($.name);

That co

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  • 2021-01-31 09:18

    in jquery we have to use selector($) to declare variables

    var test=$("<%=ddl.ClientId%>");
    

    here we can get the id of drop down to j query variable

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  • 2021-01-31 09:20

    jQuery is just a javascript library that makes some extra stuff available when writing javascript - so there is no reason to use jQuery for declaring variables. Use "regular" javascript:

    var name = document.myForm.txtname.value;
    alert(name);
    

    EDIT: As Canavar points out in his example, it is also possible to use jQuery to get the form value:

    var name = $('#txtname').val(); // Yes, it's called .val(), not .value()
    

    given that the text box has its id attribute set to txtname. However, you don't need to use jQuery just because you can.

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  • 2021-01-31 09:22

    Remember jQuery is a JavaScript library, i.e. like an extension. That means you can use both jQuery and JavaScript in the same function (restrictions apply).

    You declare/create variables in the same way as in Javascript: var example;

    However, you can use jQuery for assigning values to variables:

    var example = $("#unique_product_code").html();
    

    Instead of pure JavaScript:

    var example = document.getElementById("unique_product_code").innerHTML;
    
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  • 2021-01-31 09:25

    Here's are some examples:

    var name = 'india';
    alert(name);  
    
    
    var name = $("#txtname").val();
    alert(name);
    

    Taken from http://way2finder.blogspot.in/2013/09/how-to-create-variable-in-jquery.html

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  • 2021-01-31 09:27

    In jquery, u can delcare variable two styles.

    One is,

    $.name = 'anirudha';
    alert($.name);
    

    Second is,

    var hText = $("#head1").text();
    

    Second is used when you read data from textbox, label, etc.

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  • 2021-01-31 09:36
    var name = 'john';
    document.write(name);
    

    it will write the variable you have declared upper

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