如何在jQuery中定义变量 [英] how to define variable in jquery

问题描述

我想知道如何在jQuery中声明一个变量

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

我当前使用的代码是

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

该代码可以正常工作，但是如果我将其编写为

That code works fine, but if I write it as

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

然后我的代码不起作用.

Then my code does not work.

推荐答案

jQuery只是一个javascript库，在编写javascript时提供了一些额外的可用内容-因此没有理由使用jQuery声明变量.使用常规" javascript:

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);

正如Canavar在他的示例中指出的那样，也可以使用jQuery获取表单值:

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()

假定文本框的id属性设置为txtname.但是，您不需要仅仅因为您可以就能使用jQuery.

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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