I made an IDE (with <textarea> and CodeMirror), which looks like this:
And on the left, there is a div containing the lines counter.
So what I'm trying to do is to get the last line number (12 in the picture above).
This is my code:
$(document).ready(function() {
$(document).keydown(function() {
let element = document.getElementsByClassName("CodeMirror-linenumber");
element = element.item(element.length - 1);
escape(element);
let num = "";
num = parseInt(element);
console.log(num);
});
});
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="array.js" type="text/javascript"></script>
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.32.0/codemirror.min.css"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.52.2/codemirror.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.52.2/mode/xml/xml.min.js"></script>
</head>
<body>
<textarea id="editor"></textarea>
<script>
var myCodeMirror = CodeMirror.fromTextArea(document.getElementById("editor"), {
mode: "xml",
htmlMode: true,
lineNumbers: true
});
</script>
</body>
</html>
The problem is that when I run it on Chrome, it gives me an output "NaN".
I know that this question is already asked, but I didn't find a satisfactory answer.
There is no reason for you to use escape(element). In fact, it is deprecated anyway. What you're doing is simply encoding the element into some kind of hexadecimal string, which you do not want.
What you want is to simply access the innerText property of the element, and use either parseInt(element.innerText) or even better, the unary plus operator, +element.innerText to get the line number:
$(document).ready(function() {
$(document).keydown(function() {
let element = document.getElementsByClassName("CodeMirror-linenumber");
element = element.item(element.length - 1);
console.log(+element.innerText);
});
});
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="array.js" type="text/javascript"></script>
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.32.0/codemirror.min.css"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.52.2/codemirror.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.52.2/mode/xml/xml.min.js"></script>
</head>
<body>
<textarea id="editor"></textarea>
<script>
var myCodeMirror = CodeMirror.fromTextArea(document.getElementById("editor"), {
mode: "xml",
htmlMode: true,
lineNumbers: true
});
</script>
</body>
</html>
Related
Her is an example:
I got a slider element and its initialization in index.html her
<head>
<meta charset="UTF-8">
<title>Simulation Animator</title>
<link rel="stylesheet" type="text/css" href="css/style.css">
<link rel="stylesheet" type="text/css" href="css/codemirror.css">
<link rel="stylesheet" type="text/css" href="css/darcula.css">
<link rel="stylesheet" type="text/css" href="../semantic/dist/semantic.min.css">
<script src="https://cdn.jsdelivr.net/npm/jquery#3.3.1/dist/jquery.min.js"></script>
<script src="../semantic/dist/semantic.min.js"></script>
<script src="app.js"></script>
</head>
<body>
<div class="ui red labeled slider" id="speed_slider1" ></div>
<script>
var speedLabels = ["1x", "2x", "3x", "4x", "5x", "6x", "7x", "8x", "9x", "10x"];
let speed = 1;
$('#speed_slider1').slider({
min: 1,
max: 10,
interpretLabel: function(value) {
return speedLabels[value];
}
});
</script>
</body>
In my js file I wanna get the current value of the slider
$("#speed_slider1").slider({
onChange: function(value){
console.log(value);
}
});
But on console it says
Uncaught TypeError: $(...).slider is not a function
Isn't it possible to put the Javascript code in a separate js file instead of having them in index.html? If possible how?
Furthermore, can the javascript code for initialization of this slider also put in the separate js file? If possible how?
When I use document.getElementById().textContent to set the "text content" to the value of a variable it doesn't work it doesn't to anything instead changing the text content to the value of the variable. It does work when I use
.textContent = "example";
but not
.textContent = example;
Here is my HTML
<head>
<link rel="stylesheet" type="text/css" href="style.css">
<script language="javascript" type="text/javascript" src="testScript.js"></script>
</head>
<body>
<p class="heading">Heading</p>
<p id="TextSpace"></p>
</body>
Here is my JS
//Get users name
var name = prompt("What is you name");
//put the name in the element "text space"
document.getElementById("TextSpace").textContent = name;
The prompt appears but after that nothing happens
Move the script
<head>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<p class="heading">Heading</p>
<p id="TextSpace"></p>
<script language="javascript" type="text/javascript" src="testScript.js"></script>
</body>
or add an onload handler
window.onload = function() {
var name = prompt("What is you name");
document.getElementById("TextSpace").textContent = name;
}
Right now the script is running before the elements in the DOM are available.
Note that textContent is not available in IE8 and below.
Instead of putting the script tag at the bottom, you can just put defer and it will work perfectly fine
<head>
<link rel="stylesheet" type="text/css" href="style.css">
<script language="javascript" type="text/javascript" src="testScript.js" defer></script>
</head>
<body>
<p class="heading">Heading</p>
<p id="TextSpace"></p>
</body>
I have two jquery javascripts (scrollpane and last.fm one). However, whichever one is posted later in the <head> is the one that executes and shows up on the page and the other one disappears. I don't know how to fix this. Here is my head code:
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<!--LASTFM-->
<link href="css/engage.lastfm.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript" src="js/engage.lastfm.js"></script>
<script type="text/javascript">
$(document).ready(function(){
// Begin jQuery goodness
$('div#lastfm').lastFM({
username: 'angrypink',
apikey: '255b0123e857aa3f6fd52a76b70ec15d',
number: 2,
artSize: 'medium',
onComplete: function(){
}
});
// End jQuery goodness
});
</script>
<!--JSCROLL-->
<link type="text/css" href="css/jquery.jscrollpane.css" rel="stylesheet" media="all" />
<script type="text/javascript" src="js/jquery.mousewheel.js"></script>
<script type="text/javascript" src="js/jquery.jscrollpane.min.js"></script>
<script type="text/javascript" id="sourcecode">
$(document).ready(function() {
var $images = $(".tumblr img")
, imageCount = $images.length
, counter = 0;
$images.one("load",function(){
counter++;
if (counter == imageCount) {
$('.scroll-pane').jScrollPane();
}
}).each(function () {
if (this.complete) {
$(this).trigger("load");
}
});
});
</script>
</head>
You make a mistake : You have multiple definition of jquery :
<script src="js/jquery-1.10.2.min.js"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
Try to just put this one time, keep this one : <script src="js/jquery-1.10.2.min.js"></script>
Because is local one, and not depending on google
Try to clean a bit because multiple definition of jquery can create error
My options.html:
<!doctype html>
<html>
<head>
<title>Item Notifier v1.0.2</title>
<link href="style.css" rel="stylesheet" type="text/css">
<script src="jquery.js"></script>
<script src="options.js"></script>
</head>
<body>
<h1>Cowboy's Item Notifyer</h1>
<label>Last updated hat:<h2 id='itemname'>[ loading... ]</h2></label>
</body>
</html>
Then my options.js:
$(document).ready(function() {
$('#itemname').html() = localStorage.mostRecentHat;
});
It's supposed to change the innerHTML from [ loading... ] to the value of mostRecentHat but it turns up the value as undefined and doesnt change the innerHTML.
You should pass the value as a parameter to html method.
$(document).ready(function() {
$('#itemname').html(localStorage.mostRecentHat);
// document.getElementById('itemname').innerHTML = localStorage.mostRecentHat;
});
I have almost finished a website, but I'm struggling with combining two different javascript files... If I exclude A, B works. If I exclude B, A works. So there seems no go-between.
I'm trying to combine a JQuery-form validation and a JCarousel. As you can see, I have to exclude the validation script in orde to get the Carousel working...
Isn't there a way to combine both these script? I already tried the $j-trick from JQuery documentation, but with no luck.
I have included the files in this order:
<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script type="text/javascript" src="includes/js/jquery-1.6.min.sliding.js"></script>
<script type="text/javascript" src="includes/js/jquery.easing.1.3.js"></script>
<script type="text/javascript" src="includes/js/hover.js"></script>
<script type="text/javascript" src="includes/js/jquery.jcarousel.js"></script>
<!-- js links -->
<script type="text/javascript" src="includes/js/coda.js"></script>
<script type="text/javascript" src="includes/js/placeholder.js"></script>
<script language="javascript" src="includes/js/popup/modal.popup.js"></script>
<script type="text/javascript" src="includes/notify/js/jquery.noty.js"></script>
<!-- THIS MUST BE COMMENTED OTHERWISE THE CONTACT SLIDER DOENS'T WORK!!
MUST FIX!!!
<script type="text/javascript" src="includes/js/form/jquery.validationEngine-nl.js" charset="utf-8"></script>
<script type="text/javascript" src="includes/js/form/jquery.validationEngine.js" charset="utf-8"></script>
<script src="includes/lightbox/lightbox.js"></script>
-->
<script src="includes/lightbox/lightbox.js"></script>
<!-- JQuery UI -->
<script type="text/javascript" src="includes/js/jquery-ui/development-bundle/ui/jquery.ui.core.js"></script>
<script type="text/javascript" src="includes/js/jquery-ui/development-bundle/ui/jquery.ui.widget.js"></script>
<script type="text/javascript" src="includes/js/jquery-ui/development-bundle/ui/jquery.ui.datepicker.js"></script>
<script type="text/javascript" src="includes/js/jquery-ui/development-bundle/ui/jquery.ui.timepicker.js"></script>
I can see the problem but not what is causing it. I imagine you're outputting some javascript via PHP but it is coming out above the <html> tag.
If you goto view-source:http://www.YOURDOMAIN.be/new/index.php?page=&action=shout
The html looks like this:
<script>
$(document).ready(function(){noty({"text":"Uw shout is succesvol toegevoegd.",
"layout":"top","type":"success","animateOpen":{"height":"toggle"},
"animateClose":{"height":"toggle"},"speed":500,"timeout":5000,
"closeButton":true,"closeOnSelfClick":true,"closeOnSelfOver":false,"modal":false});});</script><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<meta http-equiv="Content-Type" content="text/html; charset=ISO 8859-1" />
<!-- favicon -->
<link rel="shortcut icon" href="favicon.ico" type="image/x-icon" />
<!-- css links -->
<link rel="stylesheet" type="text/css" href="styles/styles.css" />
<link rel="stylesheet" type="text/css" href="styles/skin.css" />
<link rel="stylesheet" type="text/css" href="includes/js/form/css/validationEngine.jquery.css" />
<link rel="stylesheet" type="text/css" href="includes/lightbox/lightbox.css" />
<link rel="stylesheet" type="text/css" href="includes/notify/css/jquery.noty.css"/>
<link rel="stylesheet" type="text/css" href="includes/notify/css/noty_theme_default.css"/>
<link rel="stylesheet" type="text/css" href="includes/js/jquery-ui/development-bundle/themes/base/jquery.ui.all.css">
<link rel="stylesheet" type="text/css" href="includes/js/jquery-ui/development-bundle/demos/demos.css">
<link rel="stylesheet" type="text/css" href="includes/js/jquery-ui/development-bundle/jquery-ui-timepicker.css">
<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script type="text/javascript" src="includes/js/jquery.easing.1.3.js"></script>
<script type="text/javascript" src="includes/js/hover.js"></script>
<script type="text/javascript" src="includes/js/jquery.jcarousel.js"></script>
<!-- js links -->
<script type="text/javascript" src="includes/js/coda.js"></script>
<script type="text/javascript" src="includes/js/placeholder.js"></script>
<script language="javascript" src="includes/js/popup/modal.popup.js"></script>
<script type="text/javascript" src="includes/notify/js/jquery.noty.js"></script>
<script type="text/javascript" src="includes/js/form/jquery.validationEngine-nl.js" charset="utf-8"></script>
<script type="text/javascript" src="includes/js/form/jquery.validationEngine.js" charset="utf-8"></script>
<script src="includes/lightbox/lightbox.js"></script>
<!-- JQuery UI -->
<script type="text/javascript" src="includes/js/jquery-ui/development-bundle/ui/jquery.ui.core.js"></script>
<script type="text/javascript" src="includes/js/jquery-ui/development-bundle/ui/jquery.ui.widget.js"></script>
<script type="text/javascript" src="includes/js/jquery-ui/development-bundle/ui/jquery.ui.datepicker.js"></script>
<script type="text/javascript" src="includes/js/jquery-ui/development-bundle/ui/jquery.ui.timepicker.js"></script>
<script type="text/javascript">
function mycarousel_initCallback(carousel) {
// Disable autoscrolling if the user clicks the prev or next button.
carousel.buttonNext.bind('click', function() {
carousel.startAuto(0);
});
carousel.buttonPrev.bind('click', function() {
carousel.startAuto(0);
});
// Pause autoscrolling if the user moves with the cursor over the clip.
carousel.clip.hover(function() {
carousel.stopAuto();
}, function() {
carousel.startAuto();
});
};
jQuery(document).ready(function() {
jQuery('#mycarousel').jcarousel({
auto: 2,
wrap: 'last',
initCallback: mycarousel_initCallback
});
});
</script>
<script>
$(function(){
$('.leader_picture').contenthover({
overlay_background:'#000',
overlay_opacity:0.8
});
});
</script>
<script language="javascript">
$(document).ready(function() {
//Change these values to style your modal popup
var align = 'center'; //Valid values; left, right, center
var top = 100; //Use an integer (in pixels)
var width = 500; //Use an integer (in pixels)
var padding = 10; //Use an integer (in pixels)
var backgroundColor = '#FFFFFF'; //Use any hex code
var source = 'includes/php/popup.php'; //Refer to any page on your server, external pages are not valid
var borderColor = '#333333'; //Use any hex code
var borderWeight = 4; //Use an integer (in pixels)
var borderRadius = 5; //Use an integer (in pixels)
var fadeOutTime = 300; //Use any integer, 0 = no fade
var disableColor = '#666666'; //Use any hex code
var disableOpacity = 40; //Valid range 0-100
var loadingImage = 'lib/release-0.0.1/loading.gif'; //Use relative path from this page
//This method initialises the modal popup
$(".modal").click(function() {
modalPopup(align, top, width, padding, disableColor, disableOpacity, backgroundColor, borderColor, borderWeight, borderRadius, fadeOutTime, source, loadingImage);
});
//This method hides the popup when the escape key is pressed
$(document).keyup(function(e) {
if (e.keyCode == 27) {
closePopup(fadeOutTime);
}
});
});
</script>
</head>
<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
is wrong
use this:
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
see the difference it is src.