javascript 这里 return true 或 false 有什么区别？
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what's the difference of return true or false here?
提问by Leem
$('form').submit(function() {
alert($(this).serialize());
return false; // return true;
});
what's the difference for this form submission function between return falseand true?
这个表单提交功能在 returnfalse和之间有什么区别true？
采纳答案by Matthew Abbott
If you return falsefrom the submit event, the normal page form POST will not occur.
如果false从 submit 事件返回，则不会发生正常的页面表单 POST。
回答by stealthyninja
return false, don't do the form's default action. return true, do the form's default action.
return false, 不要执行表单的默认操作。return true, 执行表单的默认操作。
It's also better to do
这样做也更好
$('form').submit(function(e) {
alert($(this).serialize());
e.preventDefault();
});
回答by bmaland
As already mentioned, returning false stops the event from "bubbling up". If you want the full details, take a look at the API documentation for bind(): http://api.jquery.com/bind/.
如前所述，返回 false 会阻止事件“冒泡”。如果您需要完整的详细信息，请查看以下 API 文档bind()：http: //api.jquery.com/bind/。
"Returning false from a handler is equivalent to calling both .preventDefault() and .stopPropagation() on the event object."
“从处理程序返回 false 相当于在事件对象上调用 .preventDefault() 和 .stopPropagation()。”
回答by manji
return false; // cancel submit
return true; // continue submit
