Steps to jQuery Validate Practical Tutorial

jQuery Validate

jQuery Validate plug-in provides powerful validation functions for forms, making client-side form validation easier and providing a large number of customization options. Meet various application needs.

1. First, if we don’t have jquery.validata.js, we need to download it. Click the God-given download link

2. Create a running environment, which means introducing the plug-ins we need.

3. Write HTML content and create a form

            

                username:                              

            

                password:                              

            

                         age:                              

            

                postcode:                              

                     

The effect is as follows:

4 .Edit the js code

<script>$(function  () {//用来绑定所需操作的form表单$(&#39;#demoForm&#39;).validate({  
                    rules:{       //返回元素验证规则//绑定元素的name值                        username:{    
                            required:true,    //设置为必填选项rangelength:[3,6]//最小长度和最大长度                        },
                        password:{//绑定元素的name值 required:true,    //设置为必填选项rangelength:[6,12]//最小长度和最大长度                        },
                        age:{     //绑定元素的name值 
//                            min:18,          //最小值//                            max:999,         //最大值range:[18,999],  //最小值和最大值rangelength:[1,3],//最小长度和最大长度digits:true      //正整数                        },
                        PostCode:{  //绑定元素的name值 required:true,   //设置为必填选项PostCode:true    //自定义验证                        }
                    },//验证错误时的提示                    messages:{    
                        username:{     //绑定元素的name值 required:&#39;此项必填&#39;,    //提示的错误信息rangelength:&#39;用户名长度为3-6位&#39;        //提示的错误信息                        },
                        password:{     //绑定元素的name值 required:&#39;此项必填&#39; ,          //提示的错误信息rangelength:&#39;用户名长度为6-12位&#39;       //提示的错误信息                        },
                        age:{     //绑定元素的name值 range:&#39;年龄必须是18--999之间&#39;,//提示的错误信息rangelength:&#39;1~3位数&#39;,       //提示的错误信息digits:&#39;年龄必须是正整数&#39;     //提示的错误信息                        },
                        PostCode:{ //绑定元素的name值 required:&#39;此项必填&#39;        //提示的错误信息                        }
                    },//当表单通过验证执行的操作                    submitHandler:function  () {
                        alert("校验全部通过")
                    },//当未通过验证的表单提交时执行的操作                    invalidHandler:function () {
                        alert("no");
                    }
                });                
                //自定义一个表单验证$.validator.addMethod(&#39;PostCode&#39;,function(value){var reg=/^[0-9]{6}$/;return reg.test(value); 
                },&#39;必须是邮编格式的&#39;)
            })</script>

The rendering is as follows:

Okay , these are the steps to use jQuery Validate. There are also some simple validation properties in the code.

If you want to know more, come and poke me! Poke me!

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