<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Close window</title>
</head>
<body>
<button id="abc" onclick="temp1()">button</button>
<script type="text/javascript">
function temp1() {
alert("temp1");
};
function temp2() {
alert("temp2");
}
document.getElementById("abc").addEventListener("click", temp2, false);
</script>
</body>
</html>
but I want to show "temp2" first, and then show "temp1"
Is that possible? or the event execution order depends on the browser so I can't change it?
thanks for help!!
Please review this one:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Close window</title>
</head>
<body>
<!-- here is your first AddEventlistener-->
<button id="abc" onclick="temp1()">button</button>
<script type="text/javascript">
function temp1() {
alert("temp1");
};
function temp2() {
alert("temp2");
}
/*then here is your second AddEventlistener*/
var d = document.getElementById("abc");
d.addEventListener("click", temp2, false);
/*javascript will execute it in order
if you want to change the order. remove first EventListener then register new one after. something like this:
*/
//remove listener
d.onclick = null;
//register new
d.addEventListener('click', temp1);
</script>
</body>
</html>
There are a couple of ways in which you can guarantee the order here:
document.getElementById("abc").addEvenListener("click", function() {
temp2();
temp1();
}, false);
Another option would be:
function temp2() {
alert();
temp1(); // call temp1 at the end of temp2
}
document.getElementById("abc").addEventListener("click", temp2, false);
Related
This question already has answers here:
How to prevent a click on a '#' link from jumping to top of page?
(24 answers)
Closed 2 years ago.
I'm student and it hasn't been long since I studied programming.
below code is simplified than real for explain.
'test()' is actually Ajax function to get data.
My goal is making 'a tag' for paging operation.
But when i clicked 'a tag', 'test()' inside of '$(document).ready' is called after 'a tag' click event occurred.
So page is always back to 1.
I don't know why this happen.
Anyone could help me?
Thank you!
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<script type="text/javascript" src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script type="text/javascript">
var page = 1;
$(document).ready(function(){
test();
alert(page);
});
function test(){
for(var i = 1; i <= 3; i++) {
var a = $("<a></a>").text(i).attr({
href: "",
idx: i
});
a.preventDefault;
$(a).click(function(){
page = $(this).attr("idx");
test();
alert(page);
});
$("#pageLink").append(a," ");
}
}
</script>
</head>
<body>
hello!
<div id="pageLink"></div>
</body>
</html>
For some reason you're calling test() inside of test(). There are a few minor things you need to change also
Prefix jQuery objects with $. var $a=... to avoid ambiguity.
preventDefault is used on the event, not the jQuery object. $a.click(function(event){event.preventDefault();...});
Otherwise it works as I believe you want it to, alerting the page number on click.
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<script type="text/javascript" src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
createLinks();
});
function createLinks(){
for(var i = 1; i <= 3; i++) {
var $a = $("<a></a>").text(i).attr({
href: "",
idx: i
});
$a.click(function(event){
event.preventDefault();
page = $(this).attr("idx");
// why are you calling this again? // test();
// maybe you want to load something // loadSomething(page);
alert(page);
});
$("#pageLink").append($a," ");
}
}
</script>
</head>
<body>
hello!
<div id="pageLink"></div>
</body>
</html>
My code is as follows, but not executable!
And anything that clicks on the play button doesn't run
HTML:
<button id="play"><img id="playicon" src="img/Polygon 1.svg"></button>
JS:
'song0' is a variable sound and sounds in 'playPauseEvent' and out of function but does not work in performance, I found this method on the following site
https://www.developphp.com/video/JavaScript/Audio-Seek-and-Volume-Range-Slider-Tutorial
var playpause, play1icon, song0;
function aslekar(){
song0 = new Audio('audio/Meydoon.mp3');
song0.loop = true;
song0.play();
document.getElementById("moon");
play1icon = document.getElementById("playicon");
playpause = document.getElementById("play");
playpause.addEventListener("click", playPauseEvent);
function playPauseEvent(){
if(song0.paused){
song0.play();
play1icon.setAttribute("src", "img/Polygon 1.svg");
}else{
song0.pause();
play1icon.setAttribute("src", "img/Group 1.svg");
}
}
}
window.addEventListener("load", aslekar);
I am very beginner and hope you can help with this :)
Check this
Live Preview
var playpause, play1icon, song0;
function aslekar(){
song0 = new Audio('https://gamepedia.cursecdn.com/dota2_gamepedia/d/db/Vo_crystalmaiden_cm_kill_07.mp3');
song0.loop = true;
song0.play();
document.getElementById("moon");
play1icon = document.getElementById("playicon");
playpause = document.getElementById("play");
playpause.addEventListener("click", playPauseEvent);
function playPauseEvent(){
if(song0.paused){
song0.play();
play1icon.setAttribute("src", "https://image.flaticon.com/icons/svg/64/64485.svg");
}else{
song0.pause();
play1icon.setAttribute("src", "https://image.flaticon.com/icons/svg/27/27223.svg");
}
}
}
window.addEventListener("load", aslekar);
and the html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>JS Bin</title>
</head>
<body>
<button id="play" onclick="playPauseEvent()"><img id="playicon" src="https://image.flaticon.com/icons/svg/27/27223.svg" width="30" height="30"></button>
</body>
</html>
I've called two functions in my HTML
<body onload="myFunction()" onmousemove="myFunction1()">
I want to execute these two functions from a javascript file and call this file in my HTML like
<script type="text/javascript" src="path/to/functions.js"></script>
i.e. both the functions will be called from the javascript file, not from html.
I have tried
window.addEventListener('load', myFunction());
window.addEventListener('onmousemove', myFunction1());
or
$(window).load(function () {
myFunction();
});
$(window).onmousemove(function () {
myFunction1();
});
but failed.
What should I do ?
DETAILS
I have a javascript file where some functions are there.
script.js
function myFunction() {
alert("This is my function");
}
function myFunction1() {
alert("This is my second function");
}
I called these functions in my html body tag
<body onload="myFunction()" onmousemove="myFunction1()">
Now I want to call these two functions from my script.js like
window.addEventListener('load', myFunction());
window.addEventListener('onmousemove', myFunction1());
what should I do ?
I think you have understood my requirement.
Your code should read like this:
window.addEventListener('load' , myFunction );
window.addEventListener('mousemove' , myFunction1 );
But if it still does not work for you, Try this:
window.onload = myFunction ;
window.onmousemove = myFunction1 ;
Check this: onload and this: onmousemove
Try
function number1(){
document.querySelector("#info").innerHTML = "LOAD";
}
function number2(){
var x = event.clientX;
var y = event.clientY;
document.querySelector("#info").innerHTML = "MouseMove: ( x:"+x+" , y:"+y+") ";
}
window.onload = function(){
number1()
}
window.onmousemove = function(){
number2()
}
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<div id="info">waiting</div>
</body>
</html>
I think You should verify that your (.js) file is loaded with the page or not?
Because i have tried both the example and both r working
window.addEventListener('load', myFunction); and window.addEventListener('load', myFunction());
<!DOCTYPE html>
<html>
<head>
<script>
function myFunction() {
alert("Page is loaded");
}
window.addEventListener('load', myFunction);
</script>
</head>
<body>
<h1>Hello World!</h1>
</body>
</html>
or
<!DOCTYPE html>
<html>
<head>
<script>
function myFunction() {
alert("Page is loaded");
}
window.addEventListener('load', myFunction());
</script>
</head>
<body>
<h1>Hello World!</h1>
</body>
</html>
I have an Html file like this:
<!doctype html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="style/boxClass.css" />
<script type="text/javascript">
/* lightBox class */
function box (id1,id2) {
this.boxBackgroundDiv = document.getElementById (id1);
this.boxWorkAreaDiv = document.getElementById (id2);
}
lightBox.prototype.setBackgroundColor = function(c) {
this.boxBackgroundDiv.style.backgroundColor = c;
alert('Hello back');
};
function init (id1,id2)
{
boxObj = new box (id1,id2);
alert ("Hello");
}
</script>
</head>
<body onload="init('box1','box2')">
<div id="lightbox1" class="boxBackground">I am here</div>
<div id="lightbox2" class="boxWorkArea"><button onclick="boxObj.setBackgroundColor('Red')">I am here</button></div>
</body>
</html>
Now when I call my init function the way it is in this code via it works fine. But if I do as below via window.onload, it does not work. its not able to get the div ids in this case. But I need div ids to crate objs for my class.
<!doctype html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="style/boxClass.css" />
<script type="text/javascript">
/* lightBox class */
function box (id1,id2) {
this.boxBackgroundDiv = document.getElementById (id1);
this.boxWorkAreaDiv = document.getElementById (id2);
}
lightBox.prototype.setBackgroundColor = function(c) {
this.boxBackgroundDiv.style.backgroundColor = c;
alert('Hello back');
};
function init (id1,id2)
{
boxObj = new box (id1,id2);
alert ("Hello");
}
window.onload = init ("box1",box2);
</script>
</head>
<body>
<div id="lightbox1" class="boxBackground">I am here</div>
<div id="lightbox2" class="boxWorkArea"><button onclick="boxObj.setBackgroundColor('Red')">I am here</button></div>
</body>
</html>
Two issues:
1) You are missing quotes around box2 parameter,
2) You are assigning the return value of init function (which here is a void) to window.onload handler.
You should assign the onload handler as below:
window.onload = function(){
init ("box1","box2");
}
i tried to pop an alert when clicked on a div , didn't really succeed , i messed it a little to practice with objects.
here is the the code :
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
var mine = {
var start = {
modeBox : function(){
alert();
}
}
}
</script>
</head>
<body>
<div id="askMode" onclick="mine.start.modeBox();">My mine</div>
</body>
</html>
the problem : not alerting
why i don't get alert when i click on the div?
live example : http://jsfiddle.net/YqP93/
The following code tested in Firefox and Chrome:
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
var mine = {
start: {
modeBox : function(){
alert('Test');
}
}
}
</script>
</head>
<body>
<div id="askMode" onclick="mine.start.modeBox();">My mine</div>
</body>
</html>
NOTE: the code you posted in jsfiddle is not working, but you can copy and paste the code above that works in browsers mentioned.
this.mine = {
start: {
modeBox : function(){
alert();
}
}
you are trying to declare a var in an object literal. I don't think this is valid js for one but more importantly you can not get at vars declared in that scope. You have to assign the property to the object. You had it right with the modeBox.
Get rid of the var deceleration (why?):
mine = {
start: {
modeBox: function() {
alert();
}
}
};
Demo: http://jsfiddle.net/YqP93/3/
try this
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
var mine = {
start: {
modeBox: function(){
alert();
}
}
}
</script>
</head>
<body>
<div id="askMode" onclick="mine.start.modeBox();">My mine</div>
</body>
</html>