I'm playing around with jQuery, and am having some trouble alerting a message on change of my select drop down element:
html:
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="script.js"></script>
</head>
<body>
<div>
<select id="fruits">
<option selected>Choose a fruit</option>
<option name="orange">Orange</option>
<option name="mango">Mango</option>
</select>
</div>
</body>
</html>
my js:
$('#fruits').on('change', function() {
alert('Hello!');
});
When I run this in Chrome, I don't get any warnings in my console, and changing the select option does nothing. Any idea what I'm doing wrong?
Put your code in document ready:
$(function () {
$('#fruits').on('change', function() {
alert('Hello!');
});
});
jsFiddle Demo.
try below code:
1.you must call js function or you can write code in ready function
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="script.js"></script>
<script>
$(document).ready(function(){
$('#fruits').on('change', function() {
alert('Hello!');
});
});
</script>
</head>
<body>
<div>
<select id="fruits">
<option selected>Choose a fruit</option>
<option name="orange">Orange</option>
<option name="mango">Mango</option>
</select>
</div>
</body>
</html>
you can try this too:
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="script.js"></script>
</head>
<body>
<div>
<select id="fruits">
<option selected>Choose a fruit</option>
<option name="orange">Orange</option>
<option name="mango">Mango</option>
</select>
</div>
<script>
$('#fruits').on('change', function() {
alert('Hello!');
});
</script>
</body>
</html>
Related
I used .style.backgroundColor = '#58eaa1' to change the background color of the dropdown list () but it changes the appearance of the dropdown list to 3d. I want the same appearance as in 'initial appearance' even after the change of background color.
Sample code (html)
function changecolor(){
var dropdownlist = document.getElementById('dropdownlist');
dropdownlist.style.backgroundColor = 'green';
}
<!DOCTYPE html>
<html lang="en">
<script src="test.js"></script>
<body>
<div class="header">
<select id="dropdownlist" onchange="changecolor()">
<option>0</option>
<option>1</option>
<option>2</option>
<option>3</option>
<option>4</option>
<option>5</option>
</select>
</div>
</body>
</html>
try it , i think this will solve your problem
<select style="background:#58eaa1 !important; border:1px solid #abadb3">
<option>hdd</option>
</select>
Here a working link: http://plnkr.co/edit/YbKyjIMVABcF8tZxlM3Y?p=preview
here the html:
// Code goes here
var changeBack = function (){
// select your select tag
var selectStatus = document.getElementById("selectStatus");
// get the number of the option currently selected
var optionSelected = selectStatus.selectedIndex;
// set his background-color to the class'name of the option
selectStatus.style.background = selectStatus.options[optionSelected].className;
//Then color each option in her proper class
for (var option in selectStatus.options){
selectStatus.options[option].style.background = selectStatus.options[option].className;
}
};
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="style.css">
<script src="script.js"></script>
</head>
<!-- Just to color the select on page load -->
<body onload="changeBack()">
<tr>
<td>
<form action="">
<select id="selectStatus" onclick="changeBack()" name="statusApproved">
<!--Set your options a class with the color you want-->
<option class="green" value="Current:Approved">Current: Approved</option>
<option class="red" value="ChangeTo:Rejected">Change to: Rejected</option>
</select>
</form>
</td>
</tr>
</body>
</html>
var buton=document.getElementById("dropdownlist");
var allchar="0123456789ABCDEF";
buton.addEventListener("change",myFun,true);
function myFun(){
var randcol= "";
for(var i=0; i<6; i++){
randcol += allchar[Math.floor(Math.random()*16)];
}
document.getElementById("dropdownlist").style.background="#"+randcol;
}
<!DOCTYPE html>
<html lang="en">
<script src="test.js"></script>
<body>
<div class="header">
<select id="dropdownlist" >
<option class="col_color">0</option>
<option class="col_color">1</option>
<option class="col_color">2</option>
<option class="col_color">3</option>
<option class="col_color">4</option>
<option class="col_color">5</option>
</select>
</div>
</body>
</html>
nothing happens with this script.
Any advice ?
I just want to make an action when an option is selected.
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script>
$('#something').on('change', function() {
console.log("hello");
})
</script>
<form id="target" method="POST" >
<select id="something">
<option></option>
<option>Value1</option>
<option>Value2</option>
<option>Value3</option>
</select>
</form>
You misplaced the code. Check this :)
$(function() {
$('#something').on('change', function() {
alert(2);
})
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form id="target" method="POST">
<select id="something">
<option></option>
<option>Value1</option>
<option>Value2</option>
<option>Value3</option>
</select>
</form>
Check this,
$('#something').on('change', function() {
console.log("hello");
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<form id="target" method="POST" >
<select id="something">
<option></option>
<option>Value1</option>
<option>Value2</option>
<option>Value3</option>
</select>
</form>
You have prepared wrong snippet. in script block it should be pure javascript and including js should be in html block. you have written in js block
This might help
$('select').on('change', function() {
alert( this.value );
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select>
<option value="1">One</option>
<option value="2">Two</option>
</select>
<html>
<title>Test</title>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
</head>
<body>
<form id="target" method="POST" >
<select id="something">
<option></option>
<option>Value1</option>
<option>Value2</option>
<option>Value3</option>
</select>
</form>
</body>
<script>
$('#something').change(function() {
alert( "Handler for .change() called." );
});
</script>
</html>
I've tried multiple variations of importing jQuery, but nothing is working. When I run it, everything in the body shows up, but the jQuery function doesn't work.
Here is my current code:
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript' src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type='text/javascript'>
$(window).load(function(){
$('select').on('change',function(){
var value=$(this).val();
var output='';
for(var i=1;i<=value;i++)
{
output+='<div>Your Text</div>';
}
$('#test').empty().append(output);
});
});
</script>
</head>
<body>
<select>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="10">10</option>
</select>
<span id="test">
</span>
</body>
</html>
What can I do to fix it?
Here are the errors I'm getting in my console:
The resource from
“https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.mi%C3%A2%E2%82%AC%C5%92%C3%A2%E2%82%AC%E2%80%B9n.js”
was blocked due to MIME type mismatch (X-Content-Type-Options:
nosniff). testy.html
ReferenceError: $ is not defined[Learn More]
The character encoding of the HTML document was not declared. The
document will render with garbled text in some browser configurations
if the document contains characters from outside the US-ASCII range.
The character encoding of the page must be declared in the document or
in the transfer protocol.
Do below steps:-
Copy the jquery library code (https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js) code and save it with the same name in your current working directory (jquery.min.js):-
Now use this code:-
<!DOCTYPE html>
<html>
<head>
<meta content="text/html;charset=utf-8" http-equiv="Content-Type">
<meta content="utf-8" http-equiv="encoding"><!-- this is for removing character encoding error-->
<script type='text/javascript' src="jquery.min.js"></script><!-- see the change here -->
</head>
<body>
<select>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="10">10</option>
</select>
<span id="test">
</span>
</body>
</html>
<script type = "text/javascript">
$(document).ready(function(){
$('select').on('change',function(){
var value=$(this).val();
var output='';
for(var i=1;i<=value;i++)
{
output+='<div>Your Text</div>';
}
$('#test').html(output); //html will do everything(removing and then adding)
});
});
</script>
Note:- You can once try like this:-
<script type='text/javascript' src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
I'm having a problem with my java-script code. Something is wrong and i don't understand. I have the following code and i can not alert the variable.
Javascript (inside head tag)
function read(){
var city = document.getElementById("cd-dropdown").value;
alert(city);
}
And this in body tag
<section class="main">
<div class="fleft">
<p>Choose City:</p>
</div>
<div class="fleft">
<select id="cd-dropdown" class="cd-select">
<option value="-1" selected>Choose City</option>
<option value="Nicosia" >Nicosia</option>
<option value="Larnaka" >Larnaka</option>
<option value="Limassol" >Limassol</option>
<option value="Paphos" >Paphos</option>
</select>
</div>
</section>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript" src="js/jquery.dropdown.js"></script>
<script type="text/javascript">
$( function() {
$( '#cd-dropdown' ).dropdown( {
gutter : 5,
stack : false,
delay : 100,
slidingIn : 100
} );
});
</script>
......
<div class="cont_btn">
<a onclick="read()" data-type="submit" class="btn">send</a>
</div>
I choose an option but I can't alert this option. I don't know what is the problem here.
You are close... Give the following a try. It is preferred in Jquery to actually use the .on() method. You can listen for whatever event you want and then respond to it.
$("#cd-dropdown").on("click", function() {
alert($(this).val());
});
<section class="main">
<div class="fleft">
<p><br />Choose City:</p>
</div>
<div class="fleft">
<select id="cd-dropdown" class="cd-select">
<option value="-1" selected>Choose City</option>
<option value="Nicosia" >Nicosia</option>
<option value="Larnaka" >Larnaka</option>
<option value="Limassol" >Limassol</option>
<option value="Paphos" >Paphos</option>
</select>
</div>
</section>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
......
<div class="cont_btn">
<a data-type="submit" class="btn">send</a>
</div>
Your code shoud work, when you click the button the checkbox is already created, try the code below:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<title>Document</title>
<script type="text/javascript">
function read(){
var city = document.getElementById("cd-dropdown").value;
alert(city);
}
</script>
</head>
<body>
<section class="main">
<div class="fleft">
<p>Choose City:</p>
</div>
<div class="fleft">
<select id="cd-dropdown" class="cd-select">
<option value="-1" selected>Choose City</option>
<option value="Nicosia" >Nicosia</option>
<option value="Larnaka" >Larnaka</option>
<option value="Limassol" >Limassol</option>
<option value="Paphos" >Paphos</option>
</select>
</div>
</section>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript" src="js/jquery.dropdown.js"></script>
<script type="text/javascript">
$( function() {
$( '#cd-dropdown' ).dropdown( {
gutter : 5,
stack : false,
delay : 100,
slidingIn : 100
} );
});
</script>
<div class="cont_btn">
<a onclick="read()" data-type="submit" class="btn">send</a>
</div>
</body>
</html>
When I reproduced the error in a fiddle, it didn't work until i changed jQuery's load to No wrap - in <head>. I think your problem may be that you're loading jQuery in the body, and it's loaded after your other script, which somehow throws things off. Try moving it to your <head> tag, like this:
<head>
<script>
function read(){
var city = document.getElementById("cd-dropdown").value;
alert(city);
}
$( function() {
$( '#cd-dropdown' ).dropdown( {
gutter : 5,
stack : false,
delay : 100,
slidingIn : 100
} );
});
</script>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script src="js/jquery.dropdown.js"></script>
<!-- etc -->
<title>Your Title</title>
</head>
<body>
<section class="main">
<div class="fleft">
<p></br>Choose City:</p>
</div>
<div class="fleft">
<select id="cd-dropdown" class="cd-select">
<option value="-1" selected>Choose City</option>
<option value="Nicosia" >Nicosia</option>
<option value="Larnaka" >Larnaka</option>
<option value="Limassol" >Limassol</option>
<option value="Paphos" >Paphos</option>
</select>
</div>
</section>
......
<div class="cont_btn">
<a onclick="read()" href="#" data-type="submit" class="btn">Send</a>
</div>
I have this script currently, which does everything I now want it to do. It has a drop down, you select goTo, and you can choose Wikipedia or a list of other websites. From there it will change the value of the iFrame that is currently there (Microsoft for example) to a different website (Wikipedia for example).
However my issue is that upon changing options, it closes the connection and displays a blank page until I choose Wikipedia. How can I resolve this? This is my current code
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<link href="style.css" rel="stylesheet" />
<script src="http://code.jquery.com/jquery-2.0.3.min.js" data-semver="2.0.3" data-require="jquery"></script>
<script type="text/javascript" src="http://www.appelsiini.net/projects/chained/jquery.chained.js?v=0.9.10"></script>
<script>
function goToPage763(mySelect)
{
PageIndex2=mySelect.selectedIndex;
{
if
(
mySelect.options[PageIndex2].getAttribute('href') != "none"
)
{
//this is the key code in the JavaScript to open the new page in
//the iframe:-
frames['iframe2'].location.href = mySelect.options[PageIndex2].getAttribute('href');
}
}
}
// Add your javascript here
$(function(){
$("#size").chained("#color");
});
</script>
</head>
<body>
<form name="form763">
<select class="form-control" id="color">
<option value="">choose options</option>
<option value="27">Goto</option>
<option value="26">Nothing</option>
</select>
<select class="form-control" id="size" name="select763" size="1" onchange="goToPage763(this.form.select763)">
<option value="">choose options</option>
<option value="27" class="27" href="http://www.wikipedia.com">Wiki</option>
<option value="26" class="26">Nothing</option>
</select>
</form>
<iframe name="iframe2" src="http://www.microsoft.com" align="top" height="800px" width="95%" align="middle">
</body>
</html>
See if this will solve your problem
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<script src="http://code.jquery.com/jquery-2.0.3.min.js"
data-semver="2.0.3" data-require="jquery"></script>
<script>
function goToPage763(mySelect){
frames['iframe2'].location.href = $(mySelect).val();
}
</script>
</head>
<body>
<form name="form763">
<select class="form-control" id="size" name="select763"
size="1" onchange="goToPage763(this)">
<option value="">choose options</option>
<option value="http://www.wikipedia.com">Wiki</option>
<option value="http://www.microsoft.com">Microsoft</option>
<option value="https://www.wiktionary.org/">Wiktionary</option>
</select>
</form>
<iframe name="iframe2" src="http://www.microsoft.com" align="top"
height="800px" width="95%" align="middle">
</body>
</html>