javascript - JS : Javascript validation not working

Question

Here is js fiddle

我已经做了很多验证，但这次没有工作我不知道如何请帮助我..HTML

<form action="" method="post" name="contactformm" onsubmit="return valiadd()">
                    <div class='row'>
                        <div class='col-sm-4'>
                            <div class='form-group'>
                                <label for='fname'>Name</label>
                                <input type='text' name='namee' class='form-control' />
                            </div>

                            <div class='text-right'>
                                <input type='submit' class='btn btn-primary' value='Submit' />
                            </div>
                        </div>
                    </div>
                </form>

Javascript 代码

function valiadd {
var name = document.contactformm.namee.value;
     if(name==""){
         alert('Please Fill Your Name');
         document.contactformm.namee.focus();
         return false;
     }

     else {
        return true;
     }

 }

Answer 1

你只是忘了在你的函数名后面加括号

只需更改这一行:

function valiadd {

与

function valiadd() {