为什么当一个性别收音机被检查时,窗体仍然返回false?表格仍然返回错误,即使当一个收音机正在检查
HTML
<form action="">
<input class="radio_male" type="radio" name="gender" value="Male"> Male
<br>
<input class="radio_female" type="radio" name="gender" value="Female"> Female
<br>
<input type="submit" value="Submit">
</form>
的JavaScript
var $ = document.querySelector.bind(document);
$('form').onsubmit = function() {
if(!$('.radio_male').checked || !$('.radio_female').checked) {
return false;
} else {
return true;
}
}
你能说出是什么输出? –
链接到[jsFiddle](https://jsfiddle.net/errhunter/Lz44tk7d/) –
@ JTrixx16 [这里](https://jsfiddle.net/q97o8bh7/3/)是我制作的示例。如果你想确定复选框是真是假 –