i am trying to check an auto generated span class="" content , which i will use it as a condition to determine whether i will show a message to the user or not
我正在尝试检查自动生成的span class =“”内容，我将使用它作为条件来确定我是否会向用户显示消息
here is the span
这是跨度
<span id="sprytextfield1" class="textfieldInvalidFormatState">
what i tried here is to put a Div called email with an id so i can use the following
我在这里尝试的是将一个名为电子邮件的Div放入ID，以便我可以使用以下内容
if ($('email').html('<span id="sprytextfield1" class="textfieldInvalidFormatState">'))
{
alert ("error");
}
but this did not work because if put the span inside my div email this will stop the JavaScript and result in error, because for some data condition i can not close the div at the end of the span.
但是这不起作用，因为如果将span放在我的div电子邮件中，这将停止JavaScript并导致错误，因为对于某些数据条件，我无法在跨度结束时关闭div。
is there any way to get the span class without putting all the span inside a div ?
有什么方法可以获得span类而不将所有跨度放在div中？
2 个解决方案
#1
2
Check: http://jsfiddle.net/pratik136/YY5RR/
检查：http：//jsfiddle.net/pratik136/YY5RR/
This will let you get the class of all spans.
这将让你获得所有跨度的类。
#2
1
If you want to append a span to your div and still get a reference to it (so you can modify it further), I'd suggest doing like this:
如果你想为你的div附加一个跨度并且仍然得到它的引用（所以你可以进一步修改它），我建议这样做：
$("#email").html(""); // optional: clear email
var mySpan = $('<span id="sprytextfield1" class="textfieldInvalidFormatState"/>').appendTo($('#email'));
Then you can add more things to the span, like text or other elements:
然后，您可以在跨度中添加更多内容，例如文本或其他元素：
mySpan.text("some text");
mySpan.append('<a>some link</a>');
You mentioned you can't close the div after the span, I understood that you want to add more elements to it, is that correct? Just append (or prepend) them, after creating the span:
你提到你不能在跨度后关闭div，我明白你要为它添加更多元素，这是正确的吗？在创建跨度后，只需追加（或预先添加）它们：
$("#email").append(someElement); // Will appear in the end, after the span
$("#email").prepend(someElement); // Will appear in the beginning, before the span
Update: re-reading your question, it's not clear to me what you're trying to check. Will the span be already in your document, and you just want to see whether or not it has a specific class (that you already know)? If that's the case, get the element (you have its id) and use hasClass on it:
更新：重新阅读你的问题，我不清楚你要检查什么。跨度是否已经在您的文档中，您只想查看它是否具有特定类（您已经知道）？如果是这种情况，请获取元素（您有其id）并在其上使用hasClass：
if ( $("#sprytextfield1").hasClass("textfieldInvalidFormatState") ) {
alert("error");
}
#1
2
Check: http://jsfiddle.net/pratik136/YY5RR/
检查：http：//jsfiddle.net/pratik136/YY5RR/
This will let you get the class of all spans.
这将让你获得所有跨度的类。
#2
1
If you want to append a span to your div and still get a reference to it (so you can modify it further), I'd suggest doing like this:
如果你想为你的div附加一个跨度并且仍然得到它的引用（所以你可以进一步修改它），我建议这样做：
$("#email").html(""); // optional: clear email
var mySpan = $('<span id="sprytextfield1" class="textfieldInvalidFormatState"/>').appendTo($('#email'));
Then you can add more things to the span, like text or other elements:
然后，您可以在跨度中添加更多内容，例如文本或其他元素：
mySpan.text("some text");
mySpan.append('<a>some link</a>');
You mentioned you can't close the div after the span, I understood that you want to add more elements to it, is that correct? Just append (or prepend) them, after creating the span:
你提到你不能在跨度后关闭div，我明白你要为它添加更多元素，这是正确的吗？在创建跨度后，只需追加（或预先添加）它们：
$("#email").append(someElement); // Will appear in the end, after the span
$("#email").prepend(someElement); // Will appear in the beginning, before the span
Update: re-reading your question, it's not clear to me what you're trying to check. Will the span be already in your document, and you just want to see whether or not it has a specific class (that you already know)? If that's the case, get the element (you have its id) and use hasClass on it:
更新：重新阅读你的问题，我不清楚你要检查什么。跨度是否已经在您的文档中，您只想查看它是否具有特定类（您已经知道）？如果是这种情况，请获取元素（您有其id）并在其上使用hasClass：
if ( $("#sprytextfield1").hasClass("textfieldInvalidFormatState") ) {
alert("error");
}