Button Failing to Perform Function jQuery - javascript

I'm trying to make a button, so that when pressed it slides one div away and then another slides back in, however I'm trying to prevent it from refreshing the page but the
return false;
line seems to break the script. Any ideas?
HTML:
<!DOCTYPE HTML>
<html lang="en">
<head>
<meta charset="UTF-8">
<link rel="stylesheet" href="css/style.css" />
<script type="text/javascript" src="slide.js"></script>
</head>
<body>
<button id="button1" onclick="nextSlide('#1', '#2')">Hide it</button>
<p id="1">Hide this text</p>
<p id="2">Show this text</p>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/2.0.2/jquery.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.10.3/jquery-ui.min.js"></script>
</body>
</html>
JS:
window.onload=function(){
$('#2').fadeOut(1);
};
function nextSlide(hideDiv, showDiv) {
$(hideDiv).hide("slide", 2000, function(){
$(showDiv).show("slide", 2000);
});
return false;
};

Why do you have to return anything? Is there another method dependent on getting "false" back?

Related

Success animation tutorial not running CSS

I'm on a tutorial to create a success check mark with an animation.
I already created all the elements such as the box for the alert etc but have trouble with an animation.
Here is the code example I'm following : Link
I tried to do it on my computer putting the HTML part and the JS together and the css in a style.css sheet but doesn't work :(
Here is the HTML document :
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<link rel="stylesheet" href="style.css" />
<title>Test</title>
<script>
$("button").click(function () {
$(".check-icon").hide();
setTimeout(function () {
$(".check-icon").show();
}, 10);
});
</script>
</head>
<body>
<div class="success-checkmark">
<div class="check-icon">
<span class="icon-line line-tip"></span>
<span class="icon-line line-long"></span>
<div class="icon-circle"></div>
<div class="icon-fix"></div>
</div>
</div>
<center>
<button id="restart">Restart Animation</button>
</center>
</body>
</html>
I didn't copy the css as it is the same as is the link and a long code..
It gives me a white screen and a lot of warnings on code inspection :
As I'm doing something wrong please ?
Thank you for your help,
Jerry
jQuery is missing from your code, try adding adding it in the <head> section.
EDIT: You are also using a wrong .css file. I think you copied the uncompiled SCSS from the tutorial. To fix this, go back to the CodePen example and on the top-right corner of the CSS section open the context menu and click "View Compiled CSS". Then copy the CSS into style.css
Here is a working solution:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Test</title>
<link rel="stylesheet" href="style.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0/jquery.min.js"></script>
<script>
$(() => {$("button").click(function () {
$(".check-icon").hide();
setTimeout(function () {
$(".check-icon").show();
}, 10);
});});
</script>
</head>
<body>
<div class="success-checkmark">
<div class="check-icon">
<span class="icon-line line-tip"></span>
<span class="icon-line line-long"></span>
<div class="icon-circle"></div>
<div class="icon-fix"></div>
</div>
</div>
<center>
<button id="restart">Restart Animation</button>
</center>
</body>
</html>

Why is my Javascript and JQuery scripting not working?

I was looking at another question and saw that they had been told, when their Javascript was not working, to put a function that started on loading of the page.
I was trying to use this code:(well, not exactly this code, but something like it)
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script type="text/javascript" charset="utf-8">
function doThisWhenLoaded(){
var code = document.getElementsByTagName("body");
code.append("<p>Yes it did.</p>");
}
</script>
</head>
<body onload="doThisWhenLoaded">
<h1 style="font-family:sans-serif;">Did it work?</h1>
</body>
</html>
And nothing happened. All that it did was show the h1 code that I put in there.
Since you are already including jQuery try this
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script type="text/javascript" charset="utf-8">
$(document).ready(function(){
var code = $("body");
code.append("<p>Yes it did.</p>");
});
</script>
</head>
<body >
<h1 style="font-family:sans-serif;">Did it work?</h1>
</body>
</html>
You forgot to include the parenthesis to call the function in the body element's onload attribute:
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script type="text/javascript" charset="utf-8">
function doThisWhenLoaded() {
//Modified the two lines below slightly
var code = document.querySelector("body");
code.innerHTML += "<p>Yes it did.</p>";
}
</script>
</head>
<body onload="doThisWhenLoaded()">
<h1 style="font-family:sans-serif;">Did it work?</h1>
</body>
</html>
A better/cleaner way to achieve the same thing would be to use addEventListener and DOMContentLoaded event. Something like below:
document.addEventListener("DOMContentLoaded", appendHtml.call(null, {
selector: 'body',
html: '<p>Yes it did.</p>'
}));
function appendHtml(config) {
document.querySelector(config.selector).innerHTML += config.html;
}
<h1 style="font-family:sans-serif;">Did it work?</h1>
Two reason why it doesn't work:
To select the body you have to use document.body or $("body") (in jQuery)
And you forgot to add parentheses to your function call doThisWhenLoaded()
Here is the code corrected:
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script type="text/javascript" charset="utf-8">
function doThisWhenLoaded(){
$("body").append("<p>Yes it did.</p>");
}
</script>
</head>
<body onload="doThisWhenLoaded()">
<h1 style="font-family:sans-serif;">Did it work?</h1>
</body>
</html>

HTML/Javascript button doesn't return alert

I made a HTML page with a button, that displays a message saying: "This is a message". Everything looks fine, but when I press the button don't get a message. I checked for any mistakes, but I couldn't find anything. What am I doing wrong?
<!DOCTYPE html>
<html>
<head>
<title>Testing JavaScript</title>
<link rel="stylesheet" type="css" href="Button.css">
</head>
<body>
<h1>Javascript</h1>
<p>I am testing JS on this page.<br/>
This is a button.</p>
<script>
var message = "This is a message";
function popUp()
{
alert(message);
}
</script>
<button type="button" onclick="press()">Press me!</button>
</body>
</html>
You should call to onclick="popUp()"
Instead of onclick="press()":
onclick="popUp()"
You dont have a function named as "press()" declared, change the code
<!DOCTYPE html>
<html>
<head>
<title>Testing JavaScript</title>
<link rel="stylesheet" type="css" href="Button.css">
</head>
<body>
<h1>Javascript</h1>
<p>I am testing JS on this page.<br/>
This is a button.</p>
<script>
var message = "This is a message";
function popUp()
{
alert(message);
}
</script>
<button type="button" onclick="popUp()">Press me!</button>
</body>
</html>

jQuery load causes body to turn white

I'm simply transitioning from a welcome page to a new page with content via jQuery's fadeOut/fadeIn and load functionality. Both pages have the same CSS and frameworks loaded, and both have black backgrounds. However, when it loads the second page, the background changes to white.
This is not a 'white flash' like the other questions asked on here. Literally, the body turns to white and stays that way. Any ideas why or what I'm doing wrong? I'm sure I've overlooked something very basic.
index.html:
<!DOCTYPE html>
<head>
<link rel="stylesheet" type="text/css" href="css/style.css" />
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.10.3/jquery-ui.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$(function(){
$('#go').click(function() {
$('html').fadeOut(2500, function() {
$(this).load('second.html', function() {
$(this).fadeIn(2500);
});
});
return false;
});
})
});
</script>
</head>
<body>
<a id="go">Go!</a>
</body>
</html>
second.html:
<!DOCTYPE html>
<head>
<link rel="stylesheet" type="text/css" href="css/style.css" />
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.10.3/jquery-ui.min.js"></script>
</head>
<body> </body>
</html>
style.css:
body {
background: #000000;
}
analysis...
$('#go').click(function() { // clicking go...
$('html').fadeOut(2500, function() { // html fade out....
$(this).load('second.html', function() { // html content changes...
$(this).fadeIn(2500); // this line can't run... cause entire html changes... including the <head> that has the script... this line is goodbye...
});
});
return false;
});
suggestion, only change the content of <body> tag...

jQuery works in jsfiddle, but not in html file?

I checked many times, but I have no idea why the jQuery wont work. It works in jsfiddle!
html:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Josue Espinosa</title>
<link href="style.css" rel="stylesheet" type="text/css">
<script src="animate.js"></script>
<script src="http://code.jquery.com/jquery-latest.min.js"
type="text/javascript"></script>
</head>
<body>
<div id="menu">
</div>
</body>
</html>
css:
#menu{
width:15px;
height:200px;
background:red;
}
jquery:
$('#menu').hover(function(){
$("#menu").stop().animate({width : "300px"});
});
It seems like problem lies here:
<script src="animate.js"></script>
<script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
Your animate.js goes before jquery loads
You need to either wrap your jquery code in $(function () {}) or (preferred) move the code to just before </body>.
Since the other answers didn't seem to work out for you, I'm going to take a stab at a suggestion.
I'm guessing that you're initializing your JavaScript in a location where the element you're adding the event listener to isn't available yet. Here is a solution to this problem.
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Josue Espinosa</title>
<link href="style.css" rel="stylesheet" type="text/css">
<script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
<script src="animate.js"></script>
</head>
<body>
<div id="menu">
</div>
<script type="text/javascript">
$('#menu').hover(function () {
$("#menu").stop().animate({ width: "300px" });
});
</script>
</body>
</html>
In this example, the JavaScript is immediately below the element you're adding the listener to, so it is guaranteed to be available in the DOM.
Alternatively, you can wrap your JS around an event to fire after the document is ready. Here is an example:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Josue Espinosa</title>
<link href="style.css" rel="stylesheet" type="text/css">
<script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
<script src="animate.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$('#menu').hover(function () {
$("#menu").stop().animate({ width: "300px" });
});
});
</script>
</head>
<body>
<div id="menu">
</div>
</body>
</html>
It is also important to note the sequence of the JavaScript elements.

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