因此,每当用户按enter键提交输入时,我都会尝试清除文本输入。我试过$("#textbox").val('')
,但它不起作用,我不知道我做错了什么。我也试过.html('')
和.text('')
。我不知道为什么它不起作用。
这是我的编码。
// JavaScript Document
$(document).ready(function() {
$('a').click(function() {
$('#start').css('background-color', '#09C');
});
});
//Item variable//
$(document).ready(function() {
$("form").submit(function() {
var input = $("#command").val();
var check = false;
if (input == "help") {
$("#Help").clone().insertBefore("#placeholder").fadeIn(1000);
check();
}
if (input == "Lombardy East") {
$("<p class='text'> Great Choice! Close enough to Alexandra to have access to their commuters but far enough not to step on anyone's toes! Now it's time to choose your route. Shall we?</p>").hide().insertBefore("#placeholder").fadeIn(1000);
$("<p id='green' class='text'>Let's do this?</p>").hide().insertBefore("#placeholder").fadeIn(1000);
check();
check();
}
if (input == "Lyndhurst") {
$("<p class='text'> It's good enough choice. As long as you don't clash with other drivers on the main road, you should be fine. Now it's time to choose your route. Shall we?</p>").hide().insertBefore("#placeholder").fadeIn(1000);
$("<p id='green' class='text'>Okay?</p>").hide().insertBefore("#placeholder").fadeIn(1000);
check();
check();
}
if (input == "Orange Grove") {
$("<p class='text'>Hmmm ... That's a bit close to Louis Botha main road. You might have a few aggressive run ins. Good Luck with that.Now it's time to choose your route. Shall we?</p>").hide().insertBefore("#placeholder").fadeIn(1000);
$("<p id='green' class='text'>Sure?</p>").hide().insertBefore("#placeholder").fadeIn(1000);
check();
check();
}
if (input == "No") {
$("<p class='text'> Voetsak! Don't be a wuss!</p>").hide().insertBefore("#placeholder").fadeIn(1000);
check();
}
if (input == "Yes") {
var url = "thirdpage.html";
$(location).attr('href', url);
check();;
}
if (input == "Let's do this") {
var url = "frthpage.html";
$(location).attr('href', url);
check();
}
if (input == "Okay") {
var url = "ffthpage.html";
$(location).attr('href', url);
check();
}
if (input == "Sure") {
var url = "sxthpage.html";
$(location).attr('href', url);
check();
} else if (input != "Lombardy East") {
$("<p class='text'> I do not understand your answer</p>").hide().insertBefore("#placeholder").fadeIn(1000);
check();
}
$('#command').val("");
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="placeholder"></div>
<form onsubmit="return false" autocomplete="off">
<input type="text" size="50" autofocus="autofocus" id="command" />
</form>
问题不在于您试图清除输入的方式。
$('#command').val("");
这将起作用,但是您在页面上有一个javascript错误。
问题是您的检查变量,您将变量检查初始化为基元类型。
var check = false;
这是一个布尔值,而不是函数。因此,当您试图调用变量check时,由于它不是一个函数,您将得到一个错误。
我不确定您试图通过check函数调用实现什么,但您有两种选择。
1.)移除所有check();由于check是基元类型(boolean),因此不能将其作为函数调用。
2.)你可以把检查作为一个函数。。。
var check = function() {
// Do Logic here
}