This question already has answers here:
Why does jQuery or a DOM method such as getElementById not find the element?
(6 answers)
Closed 5 years ago.
I would like to change a picture on the site when a selector/combobox changed. It works perfectly in a Bootply, but it looks like the change event not caught neither in local env, nor in appspot...
Here is the HTML:
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="/static/js/nbafantasy.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" ></script>
<link rel="stylesheet" href="https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/themes/smoothness/jquery-ui.css">
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js"></script>
</head>
<body>
Eastern conference
<div class="form-group">
<img src="http...">
<select class="custom-select mb-2 mr-sm-2 mb-sm-0" id="11a" name="11a">
<option>-</option>
<option>4:0</option>
<option>4:1</option>
<option>4:2</option>
<option>4:3</option>
<option>3:4</option>
<option>2:4</option>
<option>1:4</option>
<option>0:4</option>
</select>
<img src="...">
</div>
<div clas
And the JS:
$('#11a').on('change', function (e) {
console.log('fired');
if((document.getElementById('11a').value).charAt(0) == "4") {
document.getElementById("21aimg").src="http....";
}else{
document.getElementById("21aimg").src="http.....";
}
});
You have to wrap your event binding in $(document).ready(fn) block:
$(document).ready(function() { // <---ensures that DOM is ready to use
$('#11a').on('change', function(e) { // <---now it will be bound on target element
console.log('fired');
if (this.value.charAt(0) == "4") {
document.getElementById("21aimg").src = "http....";
} else {
document.getElementById("21aimg").src = "http.....";
}
});
});
Related
EDIT: I can only call tagsinput() if I do not use tagsinput() in a callback
This is still a problem, because I need to call tagsinput() in a callback.
ORIGINAL:
I have not been able to find an answer that solves my issue yet:
I am trying to use this library: https://bootstrap-tagsinput.github.io/bootstrap-tagsinput/examples/
my HTML file includes:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-tagsinput/0.8.0/bootstrap-tagsinput.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-tagsinput/0.8.0/bootstrap-tagsinput.js"></script>
<!-- Bootstrap CDN links -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" integrity="sha384-9aIt2nRpC12Uk9gS9baDl411NQApFmC26EwAOH8WgZl5MYYxFfc+NcPb1dKGj7Sk" crossorigin="anonymous" />
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js" integrity="sha384-OgVRvuATP1z7JjHLkuOU7Xw704+h835Lr+6QL9UvYjZE3Ipu6Tp75j7Bh/kR0JKI" crossorigin="anonymous"></script>
<script src="script.js"></script>
<select id="el" data-role="tagsinput" name="el" multiple ></select>
in script.js (which is connected to multiple HTML files, but the one in question is included above):
function addTagToInput() {
$('#el').tagsinput('add', 'item2');
}
After trying to call addTagToInput(), I get $(…).tagsinput is not a function even though the CDN JS file was properly loaded.
The deciding question is still how exactly do you initialize your tagsinput()?
Also I think that you get some other errors like network problems or something else, so that the tagsinput or jQuery library will not load. The following code works correctly and I've created a button whose click event triggers the addTagToInput() function:
$(function() {
var $el = $('#el'),
$btnAddTag = $('#add-tag');
function initInput() {
$el.tagsinput({
// add a custom class which run with bootstrap v4
tagClass: 'badge-dark'
});
}
function addTagToInput() {
$('#el').tagsinput('add', 'item' + Math.floor(Math.random() * 100));
}
initInput();
addTagToInput();
$btnAddTag.on('click', addTagToInput);
});
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" integrity="sha384-9aIt2nRpC12Uk9gS9baDl411NQApFmC26EwAOH8WgZl5MYYxFfc+NcPb1dKGj7Sk" crossorigin="anonymous" />
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-tagsinput/0.8.0/bootstrap-tagsinput.css" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js" integrity="sha384-OgVRvuATP1z7JjHLkuOU7Xw704+h835Lr+6QL9UvYjZE3Ipu6Tp75j7Bh/kR0JKI" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-tagsinput/0.8.0/bootstrap-tagsinput.js"></script>
<button type="button" class="btn btn-dark" id="add-tag">+</button>
<!-- because of adding the initInput() function in jQuery I've deleted the data-role="tagsinput"-->
<select id="el" name="el" multiple ></select>
I'm using the Bootstrap-Multiselect function; I want to unselect an option when I click on "x".
This is a simple example of what I'm looking for.
$(document).on("click", '#remove', function(a) {
var tag = this.getAttribute("value");
$('#tags').find('[value=' + tag + ']').prop('selected', false);
});
<html>
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.7.5/css/bootstrap-select.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.7.5/js/bootstrap-select.min.js"></script>
</head>
<body>
<div class="container">
<h1>Bootstrap Select demo</h1>
<select class="selectpicker" id='Tags' data-style="btn-primary" multiple data-max-options="2">
<option value='Php' selected>PHP</option>
<option>CSS</option>
<option>HTML</option>
<option>CSS 3</option>
<option>Bootstrap</option>
<option>JavaScript</option>
</select>
<div value='Php' id='remove'>x</div>
</div>
</body>
</html>
This could be achieved by unselecting all then getting the selected values and remove the target tag from them and reselect the rest of them then finally refresh the select :
$(document).on("click", '#remove', function(a) {
var tag = this.getAttribute("value");
var values = $('#tags').val();
if(values){
$('#tags').selectpicker('deselectAll');
$('#tags').selectpicker('val', values.filter(function(e) {return e !== tag }));
$('#tags').selectpicker('refresh');
}
});
<html>
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.7.5/css/bootstrap-select.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.7.5/js/bootstrap-select.min.js"></script>
</head>
<body>
<div class="container">
<h1>Bootstrap Select demo</h1>
<select class="selectpicker" id='tags' data-style="btn-primary" multiple data-max-options="2">
<option value='Php' selected>PHP</option>
<option>CSS</option>
<option>HTML</option>
<option>CSS 3</option>
<option>Bootstrap</option>
<option>JavaScript</option>
</select>
<div value='Php' id='remove'>x</div>
</div>
</body>
</html>
I think that you should not use the value attribute in a div element, since it was not designed the job you are trying to do (see here). You can use a data-tag="php" for example, and when writing html I think is best to use " instead of ' too, but the browser do the trick.
In the select element, you wrote the id tags with the first letter in "caps lock"
and then in the javascript code you use #tags, see:
<select class="selectpicker" id='Tags' data-style="btn-primary" multiple data-max-options="2">
$('#tags').find('[value=' + tag + ']').prop('selected', false);
After that, you just need to remove the selected element from the array and set the values again, see a working example:
jQuery(document).ready(function($) {
$(document).on("click", '#remove', function(a) {
var removed = $(this).data('value')
var values = $("#tags").val()
var index = values.indexOf(removed)
if (index != -1) {
values.splice(index, 1)
$('#tags').selectpicker('val', values);
}
});
});
<html>
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.7.5/css/bootstrap-select.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.7.5/js/bootstrap-select.min.js"></script>
</head>
<body>
<div class="container">
<h1>Bootstrap Select demo</h1>
<select class="selectpicker" id="tags" data-style="btn-primary" multiple data-max-options="2">
<option value="Php" selected>PHP</option>
<option>CSS</option>
<option>HTML</option>
<option>CSS 3</option>
<option>Bootstrap</option>
<option>JavaScript</option>
</select>
<div data-value="Php" id="remove">x</div>
</div>
</body>
</html>
This question already has answers here:
Validating multiselect with jquery validation plugin
(2 answers)
How can I use jQuery validation with the "chosen" plugin?
(18 answers)
Closed 4 years ago.
I am trying to set some validation rules on a multiselect field. Problem is the validation only works when I deactivate the JQuery multiselect pluggin. See fiddle. Is there a way to make the two work together?
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<!doctype html>
<html>
<head>
<link href="http://wowislandcharter.com/roit/script/jquery/multiselect/multiselect.css"
type="text/css"
rel="stylesheet"/>
<script src="https://code.jquery.com/jquery-1.11.1.min.js"></script>
<script src="https://cdn.jsdelivr.net/jquery.validation/1.16.0/jquery.validate.min.js"></script>
<script src="https://cdn.jsdelivr.net/jquery.validation/1.16.0/additional-methods.min.js"></script>
</head>
<body>
<form id="myform">
<select id="symptom" name="symptom" multiple="" size="15" >
<option value="1">Watery diarrhea</option><option value="2">Abdominal cramps</option><option value="3">Nausea</option><option value="4">Vomiting</option><option value="5">Diarrhea</option><option value="6">Fever</option><option value="7">Bloody Diarrhea</option><option value="8">Cramps</option><option value="9">Facial pallor</option><option value="10">Tea-colored urine</option><option value="11">Abdominal pain</option><option value="12">Jaundice</option><option value="13">Headache</option><option value="14">Stiff neck</option><option value="15">Weakness</option><option value="16">Confusion</option>
</select>
<br/>
<input type="submit" value="Validate!">
</form>
<script src="http://wowislandcharter.com/roit/script/jquery/multiselect/multiselect.js"></script>
<script>
$("#symptom").multiselect({
columns:2,
texts:{placeholder:"SELECT SYMPTOM"}
})
$( "#myform" ).validate({
rules: {
symptom: {
required: true,
}
}
});
</script>
</body>
</html>
Working on a personal project with a navigation bar. I am using jquery x.load() to load html pages into a specific div. The pages load correctly into the div. However, one of the is using a jquery flipswitch. I am trying to read the state of this flipswitch, to no prevail. I have a main javascript file that loads the individual pages, which is basically my x.load(). I have a working jquery script for reading the switch state, that works when placed directly into the developers console. I have attempted this code both inline in the individual page as well as my main javascript file. When I place it inside the individual page, it will at times cause a race condition to develop.
I am looking for any suggestions, advice, or direction on being able to read the status of the flipswitch from the individual pages.
The first section of code is my javascript file. The second section of code, is both my individual page, as well as my main html page that loads the individual html page, respectively.
jQuery(document).ready(function() {
var SideNav = $('.side-nav'),
NavTrigger = $('.nav-trigger'),
Content = $('.content'),
ApartmentAlarm = $('#Alarm'),
$('.ui-flipswitch').click(function(){console.log($(this).hasClass('ui-flipswitch-active') ? 'On' : 'Off')})
NavTrigger.on('click', function(event) {
event.preventDefault();
alert("click works");
$([SideNav, NavTrigger]).toggleClass('nav-visible');
});
ApartmentAlarm.on('click', function() {
//event.preventDefault();
Content.load('alarm.html');
$([SideNav, NavTrigger]).toggleClass('nav-visible');
});
<html>
<head>
<title></title>
<link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.css">
<script src="https://code.jquery.com/jquery-1.11.3.min.js"></script>
<script src="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.js"></script>
</head>
<body>
<form>
<label for="LeftSwitch">Left Light:</label>
<input type="checkbox" data-role="flipswitch" name="LeftSwitch" id="LeftSwitch">
<br>
<label for="RightSwitch">Right Light</label>
<input type="checkbox" data-role="flipswitch" name="RightSwitch" id="RightSwitch">
</form>
<script type="text/javascript">
$(document).ready(function() {
console.log('hello');
$('#LeftSwitch').on('flipswitchcreate', function(event, ui) {
alert('me')
});
//$('.ui-flipswitch').click(function(){console.log($(this).hasClass('ui-flipswitch-active') ? 'On' : 'Off')})
})
</script>
</body>
</html>
<html>
<head>
<title>
</title>
<link rel="stylesheet" href="apt.css">
</head>
<body>
<header class="page-header">
<div class="apartment-name">Carlson Casa</div>
<div class="data-top">
<ul class="top-data">
<li>Time</li>
<li>Outside Temp</li>
<li>Inside Temp</li>
<li>Menu<span></span></li>
</ul>
</div>
</header>
<main class="main-content">
<nav class="side-nav">
<ul>
<li>Apartment</li>
<li class="nav-label">Living Room</li>
<li>Alarm control</li>
<li>Chandelier</li>
<li class="nav-label">Bedroom</li>
<li>Lights</li>
<li>Alarm Clock</li>
</ul>
</nav>
<div class="content">
Controls go here
</div>
</main>
<script src="jquery-2.1.4.js"></script>
<script src="main.js"></script>
</body>
</html>
As you are using jQuery Mobile Flipswitch of type checkbox, you can get the status by checking the property checked. Here is a jQuery Mobile Flipswitch playground:
var cases = {false: "Unchecked", true: "Checked"};
function getStatus() {
$("#statusLeft").html(cases[$("#LeftSwitch").prop("checked")]);
$("#statusRight").html(cases[$("#RightSwitch").prop("checked")]);
}
$(document).on("change", "#LeftSwitch", function(e) {
var status = $(this).prop("checked");
$("#statusLeft").html("Changed to "+cases[status]);
});
$(document).on("change", "#RightSwitch", function(e) {
var status = $(this).prop("checked");
$("#statusRight").html("Changed to "+cases[status]);
});
function toggleLeft() {
var status = $("#LeftSwitch").prop("checked");
$("#LeftSwitch").prop("checked", !status).flipswitch("refresh");
}
function toggleRight() {
var status = $("#RightSwitch").prop("checked");
$("#RightSwitch").prop("checked", !status).flipswitch("refresh");
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
<link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.css">
<script src="https://code.jquery.com/jquery-1.11.2.min.js"></script>
<script src="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.js"></script>
</head>
<body>
<div data-role="page" id="pageone">
<div data-role="content">
<form>
<label for="LeftSwitch">Left Light:</label>
<input type="checkbox" data-role="flipswitch" name="LeftSwitch" id="LeftSwitch">
<span id="statusLeft">Unchecked</span>
<br>
<label for="RightSwitch">Right Light</label>
<input type="checkbox" data-role="flipswitch" name="RightSwitch" id="RightSwitch">
<span id="statusRight">Unchecked</span>
</form>
<button class="ui-btn" onclick="getStatus();">Get Status</button>
<button class="ui-btn" onclick="toggleLeft();">Toggle Left</button>
<button class="ui-btn" onclick="toggleRight();">Toggle Right</button>
</div>
</div>
</body>
</html>
By using the change event instead of click you will be notified of the flipswitch toggling also if you are setting the status in code.
Additional notes:
About what you are defining "race condition" i believe you are referring to one of the common mistakes when using jQuery Mobile, i.e. document.ready vs. page events. Please read this post here, and also take some time to read the whole story in deep in this great post of Omar here: jQuery Mobile “Page” Events – What, Why, Where, When & How? (you will find here some other useful posts about this topic).
Moreover: you are trying to update the flipswtches manually by setting the ui-flipswitch-active class by yourself, but i believe you will run into the problem of keeping the status and the ui consistent. So, you may better use the standard JQM way to set the flipswitch status by using flipswitch.refresh. There is already an example in my code snippet.
The last note: until you strongly need it - and you know how to versioning jQuery Mobile - please use the same version of these libraries in all your files, so in your case i believe the pair jQuery 2.1 + JQM 1.4.5 shall be just fine.
jQuery(document).ready(function() {
var SideNav = $('.side-nav'),
NavTrigger = $('.nav-trigger'),
Content = $('.content'),
ApartmentAlarm = $('#Alarm');
$('.ui-flipswitch').click(function(){console.log($(this).hasClass('ui-flipswitch-active') ? 'On' : 'Off')});
NavTrigger.on('click', function(event) {
event.preventDefault();
alert("click works");
$([SideNav, NavTrigger]).toggleClass('nav-visible');
});
ApartmentAlarm.on('click', function() {
//event.preventDefault();
Content.load('alarm.html');
$([SideNav, NavTrigger]).toggleClass('nav-visible');
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<html>
<head>
<title></title>
<link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.css">
<script src="https://code.jquery.com/jquery-1.11.3.min.js"></script>
<script src="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.js"></script>
</head>
<body>
<form>
<label for="LeftSwitch">Left Light:</label>
<input type="checkbox" data-role="flipswitch" name="LeftSwitch" id="LeftSwitch">
<br>
<label for="RightSwitch">Right Light</label>
<input type="checkbox" data-role="flipswitch" name="RightSwitch" id="RightSwitch">
</form>
<script type="text/javascript">
$(document).ready(function() {
console.log('hello');
$('#LeftSwitch').on('flipswitchcreate', function(event, ui) {
alert('me')
});
//$('.ui-flipswitch').click(function(){console.log($(this).hasClass('ui-flipswitch-active') ? 'On' : 'Off')})
})
</script>
</body>
</html>
I am a c programmer and trying to call jquery function from html.
For example from open source I am having below, I would like to make a variable wd accessible to webdriver-app.js
A.html:
<html>
<!-- jQuery & jQuery UI + theme (required) -->
<link href="jquery-ui.css" rel="stylesheet">
<script src="jquery.js"></script>
<script src="jquery-ui.js"></script>
<!-- keyboard widget css & script (required) -->
<link href="keyboard.css" rel="stylesheet">
<script src="jquery.keyboard.js"></script>
<script src="webdriver.js"></script>
<script src="base64-arraybuffer.js"></script>
<script src="FileSaver.js"></script>
<script src="hammer.min.js"></script>
<script src="webdriver-app.js"></script>
</head>
<input name="webDriverUrlPort" type="text" onchange="wd.onWebDriverUrlPortChange()" onkeyup="wd.onWebDriverUrlPortChange()"/>
<input name="webDriverUrlPort" type="text" onchange="wd.onWebPageChange()" onkeyup="wd.onWebPageChange()"/>
webdriver-app.js contains:
....
WebDriverJsController.prototype.onWebPageChange = function() {
this.view.updateSessionDepControls();
};
document.addEventListener("DOMContentLoaded", function(event) {
window.wd = new WebDriverJsController();
});
....
Currently, changing above wd.onWebPageChange() to window.wd.onWebPageChange() gives me undefined or null error. What could be wrong in above simplified code?