检查复选框是否勾选javascript [英] check if checkbox is checked javascript

问题描述

我使用jquery mobile和
构建移动网络应用程序我想检查是否选中了复选框。这是我的代码。

I am buildin a mobile web app with jquery mobile and I want to check if a checkbox is checked. Here is my code.

<script type=text/javascript>
function validate(){
if (remember.checked == 1){
          alert("checked") ;
}else{
alert("You didn't check it! Let me check it for you.")
}
}
</script>

<input id="remember" name="remember" type="checkbox" onclick="validate()" />

但是由于某些原因，它不会执行它。

But for some reason or another it doesn't execute it.

请帮助！

---- EDIT -----
这是我现在的情况。 p>

----EDIT----- This is what I have for the moment.

<DIV data-role="content" data-theme="g">
    <DIV class=ui-grid-g-login>
        <FORM method=post action=[$=PROBE(266)/] data-theme="C">
            <P>~DATA_ERROR~</P>
            <div id="mail" data-role="fieldcontain">
                <label for="mail">Email:*</label>       
                <input id="mail" name="mail" type="email" />
            </div>
            <div id="pass" data-role="fieldcontain">
                <label for="pass">Paswoord:*</label>        
                <input id="pass" name="pass" type="password" />
            </div>
            <div id="remember" data-role="fieldcontain">
                <label for="remember">Onthoud mij</label>       
                <input id="remember" name="remember" type="checkbox" onclick="validate()" />
            </div>
            <P><INPUT class=btn name=submit value=Login type=submit  onclick="validate()"></P>  
        </FORM>
    </DIV>
</DIV><!-- /content -->

<script type=text/javascript>
function validate(){
    var remember = document.getElementById('remember');
    if (remember.checked){
        alert("checked") ;
    }else{
        alert("You didn't check it! Let me check it for you.")
    }
}
</script>

---- EDIT -

----EDIT--

解决方案，问题是，fieldcontain也被命名为记住

Solved it, the problem was that the fieldcontain was also named 'remember'

推荐答案

code>是 boolean 属性，因此您可以直接在 IF 条件中使用它： -

checked is boolean property so you can directly use it in IF condition:-

 <script type="text/javascript">
    function validate() {
        if (document.getElementById('remember').checked) {
            alert("checked");
        } else {
            alert("You didn't check it! Let me check it for you.");
        }
    }
    </script>

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