串联在jQuery选择器中 [英] Concatenate in jQuery Selector

问题描述

简单的问题.我有一个js变量，我也想在jQuery选择器中串联.但是，它不起作用.也没有错误弹出.怎么了?如何在jQuery选择器中将变量正确连接到某些文本.

Simple problem. I have a js variable I want to be concatenated too within a jQuery selector. However it is not working. No errors are popping up either. What is wrong? How do I correctly concatenate a variable to some text in a jQuery selector.

<div id="part2"></div>

<script type="text/javascript" >

$('#button').click(function () 
{
var text = $('#text').val();    
var number = 2;
$.post('ajaxskeleton.php', {
red: text       
}, 
    function(){
    $('#part' + number).html(text);
    }); 
});


</script> 

推荐答案

$('#part' + number).html(text);

jQuery接受字符串(通常是CSS选择器)或 DOM节点作为参数来创建 jQuery对象.

jQuery accepts a String (usually a CSS Selector) or a DOM Node as parameter to create a jQuery Object.

在您的情况下，您应该将字符串传递给$()

In your case you should pass a String to $() that is

$(<a string>)

确保可以访问变量number和text.

Make sure you have access to the variables number and text.

要测试，请执行以下操作:

To test do:

function(){
    alert(number + ":" + text);//or use console.log(number + ":" + text)
    $('#part' + number).html(text);
}); 

如果看到您没有访问权限，请将其作为参数传递给函数，则必须包括$ .get的常规参数，并在其后传递自定义参数.

If you see you dont have access, pass them as parameters to the function, you have to include the uual parameters for $.get and pass the custom parameters after them.

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