<!DOCTYPE html>
<html>
<head>
<title>Login page</title>
</head>
<body style="background-color:red;">
I was just thinking that I could do us a private lil webpage ^^
I love you so much hun! <3
<form name="Wish">
Wish<input type="text" name="wish"/>
<input type="submit" class="button" onclick="sendtoajax(this.form)" />
<input type="reset" value="Cancel"/>
</form>
<script language="javascript">
function sendtoajax(form){
var xmlhttp;
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
alert('done')
}
}
xmlhttp.open("POST","ajax.php",true);
xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded");
xmlhttp.send("form.wish.value");
}
</script>
</body>
</html>
我想在按钮点击时执行该功能，如果我只是将它保持原样，那么它会立即执行，但是当我将它放入一个函数并且我在按钮上调用它时，它根本不会...
答案 0 :(得分：1)
更改type="button"的{{1}}。如果input有type =“submit”，则input submits，因此您的函数将不会被调用。
form答案 1 :(得分：0)
<!DOCTYPE html>
<html>
<head>
<title>Login page</title>
<script language="javascript">
function sendtoajax(){
var xmlhttp=window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject("Microsoft.XMLHTTP");
xmlhttp.onreadystatechange=function(){
if (xmlhttp.readyState==4 && xmlhttp.status==200){
alert('done')
}
}
xmlhttp.open("POST","ajax.php",true);
xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded");
xmlhttp.send( 'wish='+document.querySelectorAll('input[name="wish"]')[0].value );
}
</script>
</head>
<body style="background-color:red;">
I was just thinking that I could do us a private lil webpage ^^ I love you so much hun! <3
<form name='Wish'>
<label>Wish<input type="text" name="wish" /></label>
<input type="button" class="button" value='Wish now' onclick="sendtoajax()" />
<input type="reset" value="Cancel"/>
</form>
</body>
</html>
答案 2 :(得分：0)
在您的代码中，$('window').onscroll = function () {
$('.window').hide();
}
提交并重定向。 AJAX表单不是为了重定向。要像这样给function adjustHeightForAttributes() {
var elementHeight = document.getElementById('listSearchOptions');
var childNoLen = $('.attributelistContainer .requestedAttr span').length;
if (childNoLen >= 1) {
$('.attributelistContainer').css({"overflow-y":"auto"});
}
// Establishing media check
var widthMinCheck = window.matchMedia("(min-width: 768px)").matches;
var widthMaxCheck = window.matchMedia("(max-width: 1024px)").matches;
var orientationCheck = window.matchMedia("(orientation: landscape)").matches;
var orientationCheckPortrait = window.matchMedia("(orientation: portrait)").matches;
//True / False values check
var bothFalse = vm.searchByRoomNo === false && childNoLen === 0;
var bothTrue = vm.searchByRoomNo === true && childNoLen >= 1;
var roomSearchTrue = vm.searchByRoomNo === true && childNoLen === 0;
var childLenTrue = vm.searchByRoomNo === false && childNoLen >= 1;
//Check if scroll exists
var scrollExists = $('#listSearchOptions')[0].scrollHeight > $('#listSearchOptions')[0].clientHeight;
if (widthMinCheck && widthMaxCheck && orientationCheck) {
console.log("oreintationCheck.. " + orientationCheck);
if (bothFalse) {
if(scrollExists) {
console.log("Height..in adjustSearchAttributesheight6." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"height":"auto", "max-height":""});
}
else {
console.log("Height..in adjustSearchAttributesheight7." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"height":"52vh","max-height":"52vh"});
}
}
if (childLenTrue) {
if (scrollExists) {
console.log("Height..in adjustSearchAttributesheight1." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"38vh"});
}
else {
console.log("Height..in adjustSearchAttributesheight2." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"40vh"});
}
}
if (bothTrue) {
if (scrollExists) {
console.log("Height..in adjustSearchAttributesheight3." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"30vh"});
}
else {
console.log("Height..in adjustSearchAttributesheight4." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"32vh"});
}
}
if (roomSearchTrue) {
if ($('#listSearchOptions')[0].scrollHeight > $('#listSearchOptions')[0].clientHeight) {
console.log("Height..in adjustSearchAttributesheight5." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"44vh"});
}
else {
console.log("Height..in adjustSearchAttributesheight5." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"46vh"});
}
}
}
else if (orientationCheckPortrait) {
if (bothFalse) {
if (scrollExists) {
console.log("Height..in adjustSearchAttributesheight6." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"height":"auto", "max-height":""});
}
else {
console.log("Height..in adjustSearchAttributesheight7." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"42vh"});
}
}
if (childLenTrue) {
if ($('#listSearchOptions')[0].scrollHeight > $('#listSearchOptions')[0].clientHeight) {
console.log("Height..in adjustSearchAttributesheight1." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"38vh"});
}
else {
console.log("Height..in adjustSearchAttributesheight2." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"40vh"});
}
}
if (bothTrue) {
if (scrollExists) {
console.log("Height..in adjustSearchAttributesheight3." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"30vh"});
}
else {
console.log("Height..in adjustSearchAttributesheight4." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"32vh"});
}
}
if (roomSearchTrue) {
if ($('#listSearchOptions')[0].scrollHeight > $('#listSearchOptions')[0].clientHeight) {
console.log("Height..in adjustSearchAttributesheight5." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"45vh"});
}
else{
console.log("Height..in adjustSearchAttributesheight5." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"48vh"});
}
}
}
else{
if (bothFalse) {
if (scrollExists) {
console.log("Height..in adjustSearchAttributesheight6." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"height":"auto", "max-height":""});
}
else {
console.log("Height..in adjustSearchAttributesheight7." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"42vh"});
}
}
if (childLenTrue) {
if ($('#listSearchOptions')[0].scrollHeight > $('#listSearchOptions')[0].clientHeight) {
console.log("Height..in adjustSearchAttributesheight8." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"27.2vh"});
}
else {
console.log("Height..in adjustSearchAttributesheight9." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"27vh"});
}
}
if (roomSearchTrue) {
if (scrollExists) {
console.log("Height..in adjustSearchAttributesheight10." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"34vh"});
}
else {
console.log("Height..in adjustSearchAttributesheight11." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"36vh"});
}
}
if (bothTrue) {
if (scrollExists) {
console.log("Height..in adjustSearchAttributesheight12." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"18.5vh"});
}
else {
console.log("Height..in adjustSearchAttributesheight13." + $('#listSearchOptions')[0].clientHeight);
$('#listSearchOptions').css({"max-height":"20.8vh"});
}
}
}
}：
<form>或者在您的AJAX代码中提供return false;：
<input type="submit" class="button" onclick="sendtoajax(this.form); return false;" />
如果你可以使用jQuery，那很容易。 Lemme使用与你相同的代码，并以简单的方式将其转换为jQuery并解释：
event.preventDefault()