blocks|key|1871534|text|function+LimitText(ref,+iminlength,+imaxlength)+{
++++++++++++if+((ref.value.length+<+iminlength)+%7C%7C+(ref.value.length+>+imaxlength))+{
++++++++++++++++alert("You+are+only+allowed+between+"+%2B+iminlength+%2B+"+and+"+%2B+imaxlength+%2B+"+characters\nCurrent+length+is:+"+%2B+ref.value.length);
++++++++++++++++ref.focus();
++++++++++++}
++++++++}


+<textarea+name="myTextArea"+rows="5"+cols="5"+onblur="LimitText(this,10,160)"+></textarea>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1871535|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>function LimitText(ref, iminlength, imaxlength) {
            if ((ref.value.length &lt; iminlength) || (ref.value.length &gt; imaxlength)) {
                alert("You are only allowed between " + iminlength + " and " + imaxlength + " characters\nCurrent length is: " + ref.value.length);
                ref.focus();
            }
        }


 &lt;textarea name="myTextArea" rows="5" cols="5" onblur="LimitText(this,10,160)" &gt;&lt;/textarea&gt;
</code></pre>


blocks|key|3103474|text|<html>
++++<head>
++++++++<title>Javascript</title>
++++++++<script+src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"+type="text/javascript"></script>
++++++++<script+src="http://ajax.microsoft.com/ajax/jquery.validate/1.7/jquery.validate.min.js"+type="text/javascript"></script>



++++++++<script>
++++++++++++$(function(){
++++++++++++++++$('#myform').validate({
++++++++++++++++++++rules:+{
++++++++++++++++++++++++field:+{
++++++++++++++++++++++++++++required:+true,
++++++++++++++++++++++++++++rangelength:+[2,+6]
++++++++++++++++++++++++}
++++++++++++++++++++},
++++++++++++++++++++messages:+{
++++++++++++++++++++++++field:+{
++++++++++++++++++++++++++++rangelength:+function(range,+input)+{
++++++++++++++++++++++++++++++++return+[
++++++++++++++++++++++++++++++++++++'You+are+only+allowed+between+',
++++++++++++++++++++++++++++++++++++range[0],
++++++++++++++++++++++++++++++++++++'and+',
++++++++++++++++++++++++++++++++++++range[1],
++++++++++++++++++++++++++++++++++++'+You+have+typed+',
++++++++++++++++++++++++++++++++++++$(input).val().length,
++++++++++++++++++++++++++++++++++++'+characters'++++++++++++++++++++++++++++++++
++++++++++++++++++++++++++++++++].join('');

++++++++++++++++++++++++++++}
++++++++++++++++++++++++}
++++++++++++++++++++}++++++++++++++++++++++
++++++++++++++++});
++++++++++++});

++++++++</script>
++++</head>
++++<body>
++++++++<form+id="myform">
++++++++++++<input+id="field"+name="field"+type="text"/>
++++++++++++</br>
++++++++++++<input+type="submit"+value="submit"/>
++++++++</form>
++++</body>
</html>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|3103475|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>&lt;html&gt;
    &lt;head&gt;
        &lt;title&gt;Javascript&lt;/title&gt;
        &lt;script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js" type="text/javascript"&gt;&lt;/script&gt;
        &lt;script src="http://ajax.microsoft.com/ajax/jquery.validate/1.7/jquery.validate.min.js" type="text/javascript"&gt;&lt;/script&gt;



        &lt;script&gt;
            $(function(){
                $('#myform').validate({
                    rules: {
                        field: {
                            required: true,
                            rangelength: [2, 6]
                        }
                    },
                    messages: {
                        field: {
                            rangelength: function(range, input) {
                                return [
                                    'You are only allowed between ',
                                    range[0],
                                    'and ',
                                    range[1],
                                    ' You have typed ',
                                    $(input).val().length,
                                    ' characters'                                
                                ].join('');

                            }
                        }
                    }                      
                });
            });

        &lt;/script&gt;
    &lt;/head&gt;
    &lt;body&gt;
        &lt;form id="myform"&gt;
            &lt;input id="field" name="field" type="text"/&gt;
            &lt;/br&gt;
            &lt;input type="submit" value="submit"/&gt;
        &lt;/form&gt;
    &lt;/body&gt;
&lt;/html&gt;
</code></pre>


blocks|key|1036861|text|我们使用这个小插件：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1036862|(function+($)+{
++$.fn.textAreaLimit+=+function(+limit,+element+)+{
++++return+this.each(+function+()+{
++++++var+$this+=+$(this);
++++++var+displayCharactersLeft+=+function(charactersLeft)+{
++++++++if(+element+)+{
++++++++++$(element).html(+(charactersLeft+<=+0)+?+'0'+:+charactersLeft+);
++++++++}
++++++};

++++++$this.bind('focus+keypress+blur+click',+function()+{
++++++++var+val+=+$this.val();
++++++++var+length+=+val.length;
++++++++if(length+>+limit)+{
++++++++++$this.val(+$this.val().substring(0,+limit)+);
++++++++}
++++++++displayCharactersLeft(+limit-length+);
++++++});

++++++displayCharactersLeft(+limit-$this.val().length+);
++++});
++};
})(jQuery);|code-block|syntax|javascript|1036863|你可以这样使用它：|1036864|$('textarea').textAreaLimit(500,+".chars-left");|1036865|元素.chars-left将使用剩余字符数进行更新。当然，它适用于任何文本字段。|offset|length|style|CODE|1036866|entityMap^0|0|0|0|0|2|B|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|W|8|@$M|X|N|Y|O|P]]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

<p>We use this tiny plugin:</p>

<pre><code>(function ($) {
  $.fn.textAreaLimit = function( limit, element ) {
    return this.each( function () {
      var $this = $(this);
      var displayCharactersLeft = function(charactersLeft) {
        if( element ) {
          $(element).html( (charactersLeft &lt;= 0) ? '0' : charactersLeft );
        }
      };

      $this.bind('focus keypress blur click', function() {
        var val = $this.val();
        var length = val.length;
        if(length &gt; limit) {
          $this.val( $this.val().substring(0, limit) );
        }
        displayCharactersLeft( limit-length );
      });

      displayCharactersLeft( limit-$this.val().length );
    });
  };
})(jQuery);
</code></pre>

<p>You can use it like this:</p>

<pre><code>$('textarea').textAreaLimit(500, ".chars-left");
</code></pre>

<p>Element <code>.chars-left</code> will be updated with number of characters left. It works with any text field, of course.</p>


blocks|key|4703828|text|<html>
<head>
++++<title>Javascript</title>
++++<script+src="https://code.jquery.com/jquery-3.1.1.js"+type="text/javascript"></script>
++++<script+src="http://cdn.jsdelivr.net/jquery.validation/1.15.0/jquery.validate.min.js"+type="text/javascript"></script>



++++<script>
++++++++$(function(){
++++++++++++++jQuery.validator.addMethod("rangelength",+function(value,+element,+param)+{
++++++++++++++++param[2]=value.length;
++++++++++++++++return+this.optional(element)+%7C%7C+((value.length+>+param[0])+&&+(value.length+<+param[1]));
++++++++++++++++},'You+are+only+allowed+between+{0}+and+{1}.+You+have+typed+{2}+characters');
++++++++++++$('#myform').validate({
++++++++++++++++rules:+{
++++++++++++++++++++field:+{
++++++++++++++++++++++++required:+true,
++++++++++++++++++++++++rangelength:+[2,+6]
++++++++++++++++++++}
++++++++++++++++}++++++++++++++++++++++
++++++++++++});
++++++++});

++++</script>
</head>
<body>
++++<form+id="myform">
++++++++<input+id="field"+name="field"+type="text"/>
++++++++</br>
++++++++<input+type="submit"+value="submit"/>
++++</form>
</body>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4703829|​|unstyled|4703830|就是这样！|4703831|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|L|8|@]|9|@]|A|$]]|$1|G|3|H|5|F|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|F|7|N|8|@]|9|@]|A|$]]]|J|$]]

<pre><code>&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;Javascript&lt;/title&gt;
    &lt;script src="https://code.jquery.com/jquery-3.1.1.js" type="text/javascript"&gt;&lt;/script&gt;
    &lt;script src="http://cdn.jsdelivr.net/jquery.validation/1.15.0/jquery.validate.min.js" type="text/javascript"&gt;&lt;/script&gt;



    &lt;script&gt;
        $(function(){
              jQuery.validator.addMethod("rangelength", function(value, element, param) {
                param[2]=value.length;
                return this.optional(element) || ((value.length &gt; param[0]) &amp;&amp; (value.length &lt; param[1]));
                },'You are only allowed between {0} and {1}. You have typed {2} characters');
            $('#myform').validate({
                rules: {
                    field: {
                        required: true,
                        rangelength: [2, 6]
                    }
                }                      
            });
        });

    &lt;/script&gt;
&lt;/head&gt;
&lt;body&gt;
    &lt;form id="myform"&gt;
        &lt;input id="field" name="field" type="text"/&gt;
        &lt;/br&gt;
        &lt;input type="submit" value="submit"/&gt;
    &lt;/form&gt;
&lt;/body&gt;
</code></pre>

<p></p>

<p>There You go!</p>


<p>I am using some jquery validation and it's all working wonderfully but when the user types in more characters than is allowed in the text box I would like the validation message to say 'You are only allowed between 10 and 200 characters. You have typed 213 characters'.</p>

<p>The current code looks like this:</p>

<pre><code>rules: {
            Description: { rangelength: [10, 200] }
        },
        messages: {
            Description: "You are only allowed between 10 and 200 characters."
        }
</code></pre>

<p>Anyone have any ideas?</p>

<p>edit: It'd be good if it kept with the style of the programming, but if that's not possible I'll just have to find another way around it.</p>


JQuery Validation Character Count

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。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

我正在使用一些jquery验证，它工作得很好，但是当用户输入的字符数超过文本框中允许的字符数时，我希望验证消息显示‘您只能输入10到200个字符。您已经输入了213个字符’。当前代码如下所示：rules: {            Description: { rangelength: [10, 200] }     ...

问JQuery验证字符数
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问JQuery验证字符数EN