blocks|key|97707|text|+<input+type="text"+name="user"+id="user"+value="YOUR+DEFUALT+VALUE"+/>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|97708|或|unstyled|97709|+$("#user").attr("value",+"YOUR+DEFAULT+VALUE");|97710|只要在dom中使用上面的代码就可以了，我想应该没问题。|97711|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|N|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$B|C]]|$1|I|3|J|5|F|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|F|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<pre><code> &lt;input type="text" name="user" id="user" value="YOUR DEFUALT VALUE" /&gt;
</code></pre>

or 

<pre><code> $("#user").attr("value", "YOUR DEFAULT VALUE");
</code></pre>

Just use the above code in dom ready and it should be fine I would think.

blocks|key|97614|text|在前一个答案的基础上展开：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|97615|HTML：|97616|<input+type="text"+name="user"+id="user"+value="YOUR+DEFUALT+VALUE"+/>|code-block|syntax|javascript|97617|不应清除表单域中的默认值。|97618|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Expanding on previous answer:

HTML:

<pre><code>&lt;input type="text" name="user" id="user" value="YOUR DEFUALT VALUE" /&gt;
</code></pre>

You should not clear default values from form fields.

blocks|key|1730965|text|如果您谈论的是验证失败后看到的消息，那么您可以这样做。如果您谈论的是文本框本身的默认值，请查看@Caimen给出的答案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1730966|$("form").validate({
++++rules:+{FirstName:+"required+defaultCheck"},
++++messages:+{
++++++++++FirstName:+"First+name+is+required"
)};|code-block|syntax|javascript|1730967|即使你已经选择了你的答案，这也可能会对某些人有所帮助。如果你想让验证器忽略默认文本，我想这就是你一直想要的，你可以这样做。|1730968|+$.validator.addMethod(
++++++++++++'defaultCheck',+function+(value,+element)+{
++++++++++++++++if+(element.value+==+element.defaultValue)+{
++++++++++++++++++++return+false;
++++++++++++++++}
++++++++++++++++return+true;
++});|1730969|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

If you are talking about the message that is seen after validation fails then you can do something like this. If you are talking a default value for the textbox itself look at the answer from @Caimen.

<pre><code>$("form").validate({
 rules: {FirstName: "required defaultCheck"},
 messages: {
 FirstName: "First name is required"
)};
</code></pre>

Even though you've selected your answer this might help someone.
If you want the validator to ignore the default text which is what I think you wanted all along you can do this.

<pre><code> $.validator.addMethod(
 'defaultCheck', function (value, element) {
 if (element.value == element.defaultValue) {
 return false;
 }
 return true;
 });
</code></pre>

blocks|key|97661|text|如果您只是将其用作吸引力，则可以只使用占位符属性<input+name="search"+type="text"+placeholder="Enter+some+keywords..."+/>|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|97662|entityMap^0|O|20|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

If you just use that as attractiveness, you can just use placeholder attribute, <code>&lt;input name="search" type="text" placeholder="Enter some keywords..." /&gt;</code>

blocks|key|97806|text|这就是我要做的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|97807|<input+name="firstName"+value="First+Name"+defaultValue="First+Name">|code-block|syntax|javascript|97808|然后在验证中：|97809|if(object.value+!=+object.defaultValue)
++//+validation|97810|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

This is how I would do it:

<pre><code>&lt;input name="firstName" value="First Name" defaultValue="First Name"&gt;
</code></pre>

and then in the validation:

<pre><code>if(object.value != object.defaultValue)
 // validation
</code></pre>

I am trying to find a way to easily add default values to form which is using jquery validate plugin. I searched and didn't find anything useful, and the last similar question is one year old.
So, to ask again, is there easy way to add default values to form without messing with jquery validate code.
And of course, default values should disappear when user start to type inside the field.

Edit: I see that question is little confusing, so here is better explanation. I want to add default text to form, and i want validation plugin to ignore that default value. I know i can add method that will check if value is default value, but since form is really big, i would prefer some other solution. Like some plugin that places default text above input field, so if form gets submitted with that filed not filled by user, it appears to validate plugin as empty.

Jquery validate and default text

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在尝试找到一种方法，可以使用jquery验证插件轻松地向表单添加默认值。我搜索了一下，没有找到任何有用的东西，最后一个类似的问题是一年前的。所以，再问一遍，有没有一种简单的方法可以在不干扰jquery验证代码的情况下向表单添加默认值。当然，当用户开始在字段中键入内容时，默认值应该会消失。编辑:我看到这个问题有点令人...

问Jquery验证和默认文本
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