Demo1.html
<html> <kopf> <titels> 提交表单页 </title> <script type = "text/javaScript"> Funktion myCheck () {für (var i = 0; i <document.form1.elements.length-1; i ++) {if (document.form1.elements [i] .Value == ") {Alert (" 当前表单不能有空项 "); document.form1.elements [i] .focus (); false zurückgeben; }} return true; } </script> </head> <body> <form name = "form1" methode = "post" action = "page2.html" OnSubmit = "return myCheck ()"> 用户名: <Eingabe type = "text" name = "userername"> <br> 性别: <input type = "text". value = "提交"> </form> </body> </html> Demo2.html <script Language = "JavaScript"> <!-Funktion subjekt (frm) {if (document.frm.word.value == "") {alert ("请输入搜索新闻内容！"); document.frm.word.focus (); action="" name="frm" onsubmit="return submit1(this);"><select name="select0"> <option value="0">请选择一个类别</option><option value="1">新闻</option><option value="2">产品</option><option value="3">留言</option></select><input type="text" name="word" size="20" style = "Höhe: 19px;"> <Eingabe type = "radio" name = "sea_cat" value = "标题"> 标题 <Eingabe type = "radio" name = "see_cat" value = "内容"> 内容 <Eingabe type = "value =" 搜 "name =" b1 ">Demo3.html
<script type = "text/javaScript"> Funktion vorentwickelt (Form) {if (form.username.value == '') {alert ('用户名不能为空！'); form.username.focus (); return false;} if (form.password.Value == '') {{密码不能为空！ '); form.password.focus ();; false;} if (Form.Password.Value.Length <6) {alert ('密码至少为 6 位 ， 请重新输入！'); true;} </script> <fieldset> <legend> 用户注册 </legend> <form methode = "post" name = "form" action = "user value = "> </label> </td> </tr> <tr> <td> <label> 密 码 ： <Eingabe type =" password "name =" password "value =" "> </label> </td> </tr> <tr> <Td> <label> 重复密码 重复密码 重复密码 重复密码 重复密码 重复密码 </tR> <T. value = "注册" type = "subieren"> <Eingabe type = "reset" value = "重置"> </td> </tr> </table> </form> </fieldset>以上这篇 js 判断所有表单项不为空则提交表单的实现方法就是小编分享给大家的全部内容了 ， 希望能给大家一个参考 ， 也希望大家多多支持武林网。 也希望大家多多支持武林网。 也希望大家多多支持武林网。