我的验证表单 Dosent 工作，我不知道为什么

Question

我的验证表单根本不起作用，我不知道为什么，似乎没问题

     function Validator(){
            if(document.shahab_Form.TheCheckBox.checked)
            {
                alert("it's already Checked my Friend!");
            }
            else
            {
             alert("no it's not checked my friend");
            }
        }

    <form name="Shahab_Forms">
            <input type="checkbox" name="TheCheckBox"/>
            <input type="button" value="Press Me" onclick="Validator();"/> 
    </form>
  

Answer 1

JavaScript 区分大小写。 Shahab_Forms与shahab_forms不同。代码中有 2 个错误：

1）案例敏感性，即shahab_Forms与Shahab_Forms

2）你打错了字：shahab_Form。你最后错过了"s"。

以下是您的工作代码

 function Validator(){
            if(document.Shahab_Forms.TheCheckBox.checked)
            {
                alert("it's already Checked my Friend!");
            }
            else
            {
             alert("no it's not checked my friend");
            }
        }

   
 <form name="Shahab_Forms">
            <input type="checkbox" name="TheCheckBox"/>
            <input type="button" value="Press Me" onclick="Validator();"/> 
    </form>

Answer 2

     function Validator(){
            if(document.shahab_Form.TheCheckBox.checked)
            {
                alert("it's already Checked my Friend!");
            }
            else
            {
             alert("no it's not checked my friend");
            }
        }

    <form name="Shahab_Forms">
            <input type="checkbox" name="TheCheckBox"/>
            <input type="button" value="Press Me" onclick="Validator();"/> 
    </form>