首先要引用js库 <script src="js/jquery-1.7.2.min.js"></script> jquery验证方式 function checkIsok() { var txt_rname = document.getElementById("要验证的文本框id"); var reg = /^\s*$/; if (reg.test(txt_rname.value)) { alert("请输入姓名!");
<!DOCTYPE html><html><head><meta charset="utf-8"><title>菜鸟教程(runoob.com)</title><script src="http://static.runoob.com/assets/jquery-validation-1.14.0/lib/jquery.js"></script><script sr
jquery实现密码强度验证 jquery实现密码强度验证 JS代码: $('#pass').keyup(function(e) { var strongRegex = new RegExp("^(?=.{8,})(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9])(?=.*\\W).*$", "g"); var mediumRegex = new RegExp("^(?=.{7,})(((?=.*[A-Z])(?=.*[a-z]))