I am not able to get the checkbox in this page to be checked.
<html>
<body>
<form name="f">
<input type="checkbox" name="vehicle" value="Bike" /> 1<br /></li>
</form>
</body>
</html>
My popup.js is below:
function click(e) {
chrome.tabs.executeScript(null,
{code:"document.body.f.vehicle.checked='true'"});
window.close();
}
document.addEventListener('DOMContentLoaded', function () {
var divs = document.querySelectorAll('div');
for (var i = 0; i < divs.length; i++) {
divs[i].addEventListener('click', click);
}
});
In the console log I keep getting the error: Uncaught TypeError: Cannot read property 'vehicle' of undefined.
My popup.html is below:
<!doctype html>
<html>
<head>
<title>Set Page Color Popup</title>
<style>
body {
overflow: hidden;
margin: 0px;
padding: 0px;
background: white;
}
div:first-child {
margin-top: 0px;
}
div {
cursor: pointer;
text-align: center;
padding: 1px 3px;
font-family: sans-serif;
font-size: 0.8em;
width: 100px;
margin-top: 1px;
background: #cccccc;
}
div:hover {
background: #aaaaaa;
}
</style>
<script src="popup.js"></script>
</head>
<body>
<div id="1">1</div>
</body>
</html>
Any help would be appreciated.
It should be like this,
document.f.vehicle.checked='true';
http://jsfiddle.net/PnXsE/
Related
I just started learning JS, and im not understanding it that well. I am not that great at coding generally, so apologies for this really barebones and very possibly wrong website, but all I wanted to accomplish at the moment was to change the websites background color when I press the button. When I did it in <script< it worked, but when I moved it into a separate JS file, it stopped working. The error message I get is: SyntaxError: Unexpected token '}'. Expected an opening '{' at the start of a function body.
Could someone please help? Thank you in advance!
function makeRed() {
document.getElementById('temp').style.backgroundColor = 'lightsalmon';
}
let btnRed = document.getElementById = ('btnRed');
btnRed.addEventListener("click", makeRed);
body {
background-color: lightyellow;
text-align: center;
padding: 0;
margin: 0;
}
.temperature {
color: darkgoldenrod;
font-family: Optima, sans-serif;
}
input {
border: none;
border-bottom: 2px solid darkgoldenrod;
background-color: lightyellow;
width: 50px;
}
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
-webkit-appearance: none;
margin: 0;
}
#header {
background: darkgoldenrod;
font-size: 20px;
color: lightyellow;
font-family: Optima, sans-serif;
}
<html>
<head>
<title>Sun tester</title>
<link rel="stylesheet" href="stylesheet.css">
<link rel="icon" href="https://external-content.duckduckgo.com/iu/?u=http%3A%2F%2Fcdn.onlinewebfonts.com%2Fsvg%2Fimg_40038.png&f=1&nofb=1" type="image/x-icon">
</head>
<body>
<div id="header">
<h1 id="h1">Sun Tester</h1>
</div>
<div class="temperature">
<p id="temp2">Temperature:
<input type="number" id="temp"> °C</p>
</div>
<button type="button" id="btn-Red">Click Me!</button>
<script src="script.js"></script>
</body>
</html>
you are assigning both btnRed and the document.getElementById method to a String value 'btnRed' instead of actually running the getElementById method and passing it an argument "btnRed"
so just change the
let btnRed = document.getElementById = ('btnRed'); to
let btnRed = document.getElementById('btnRed');
You need to change the HTML element btn-Red to be btnRed and fix up your JavaScript... try this.
function makeRed() {
let r = document.getElementById('temp')
r.style.backgroundColor = 'lightsalmon';
}
let btnRed = document.getElementById('btnRed');
btnRed.addEventListener("click", makeRed);
body {
background-color: lightyellow;
text-align: center;
padding: 0;
margin: 0;
}
.temperature {
color: darkgoldenrod;
font-family: Optima, sans-serif;
}
input {
border: none;
border-bottom: 2px solid darkgoldenrod;
background-color: lightyellow;
width: 50px;
}
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
-webkit-appearance: none;
margin: 0;
}
#header {
background: darkgoldenrod;
font-size: 20px;
color: lightyellow;
font-family: Optima, sans-serif;
}
<html>
<head>
<title>Sun tester</title>
<link rel="stylesheet" href="stylesheet.css">
<link rel="icon" href="https://external-content.duckduckgo.com/iu/?u=http%3A%2F%2Fcdn.onlinewebfonts.com%2Fsvg%2Fimg_40038.png&f=1&nofb=1" type="image/x-icon">
</head>
<body>
<div id="header">
<h1 id="h1">Sun Tester</h1>
</div>
<div class="temperature">
<p id="temp2">Temperature:
<input type="number" id="temp"> °C</p>
</div>
<button type="button" id="btnRed">Click Me!</button>
<script src="script.js"></script>
</body>
</html>
Start tag head seen but an element of the same type was already open.
also I got some other errors:
" Saw <?. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.) "
and
" No p element in scope but a p end tag seen. "
I have no clue how to fix them.
<!DOCTYPE html>
<html lang="pl">
<style>
html, body { margin: 0; padding: 0; color: black; background-color: grey;}
#strona { position: absolute; color: white}
#rects { position: relative; width: 300px; height: 125px; border: 1px solid #FF0000; color: yellow; margin: 5px; padding: 2px;}
</style>
<head>
<meta charset="UTF-8"/>
<title> site</title>
</head>
<body>
<div> <script>
function clickbutton1(){
document.getElementById("opis").innerHTML = Date();
}
</script>
</div>
<div id="strona">
<h1>test</h1>
<?php
echo "<p>data replacement</p>";
echo "<div id='rects'>
<!-- starting of the function -->
<p id='opis'> internal description </p>
<script>
document.getElementById('rects').onclick = clickbutton1;
</script>
</div>";
?>
</div>
</body>
</html>```
There were some added characters under div#strona that were interfering with how the code was being run.
In order to make the Javascript functional, add the clickbutton1() onclick function directly to the HTML element.
Below is the reformatted code with HTML/CSS/Javascript in their own respective files:
function clickbutton1() {
return document.getElementById("opis").innerHTML = Date();
}
html,
body {
margin: 0;
padding: 0;
color: black;
background-color: grey;
}
#strona {
position: absolute;
color: white
}
#rects {
position: relative;
width: 300px;
height: 125px;
border: 1px solid #FF0000;
color: yellow;
margin: 5px;
padding: 2px;
}
<head>
<meta charset="UTF-8" />
<title> site</title>
</head>
<body>
<div id="strona">
<h1>test</h1>
<div onclick="clickbutton1()" id='rects'>
<p id='opis'></p>
</div>
</div>
</body>
#weemizo Yes! I added the CSS styles to a style tag and the JS into a script element. They are now both placed in the head tag.
<html>
<head>
<meta charset="UTF-8" />
<title>Site</title>
<style>
html,
body {
margin: 0;
padding: 0;
color: black;
background-color: grey;
}
#strona {
position: absolute;
color: white
}
#rects {
position: relative;
width: 300px;
height: 125px;
border: 1px solid #FF0000;
color: yellow;
margin: 5px;
padding: 2px;
}
</style>
<script>
function clickbutton1() {
return document.getElementById("opis").innerHTML = Date();
}
</script>
</head>
<body>
<div id="strona">
<h1>test</h1>
<div onclick="clickbutton1()" id='rects'>
<p id='opis'></p>
</div>
</div>
</body>
</html>
I want to take the value on an input field and display what the user has entered using JQuery on clicking a submit button. The problem is that when I click the button the console.log is blank without the user text and this is driving me crazy because I can't figure out why, here is my html:
const userLocation = $('#location').val();
$('#submit').on('click', getInfo);
function getInfo() {
console.log(userLocation)
}
#content {
width: 400px;
}
#request {
text-align: center;
}
.bl {
width: 300px;
}
#current {
text-align: center;
font-size: 2em;
}
#upcoming {
text-align: center;
}
.condition {
text-align: left;
display: inline-block;
}
.symbol {
font-size: 4em;
display: inline-block;
}
.forecast-data {
display: block;
}
.upcoming {
display: inline-block;
margin: 1.5em;
}
.label {
margin-top: 1em;
font-size: 1.5em;
background-color: aquamarine;
font-weight: 400;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Forecatser</title>
</head>
<body>
<div id="content">
<div id="request">
<input id="location" class='bl' type="text">
<input id="submit" class="bl" type="button" value="Get Weather">
</div>
<div id="forecast" style="display:none">
<div id="current">
<div class="label">Current conditions</div>
</div>
<div id="upcoming">
<div class="label">Three-day forecast</div>
</div>
</div>
</div>
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<script src="./weather.js"></script>
</body>
</html>
Why does the console print blank lines with no value, what am I doing wrong?
You're reading only the initial value of the input, not after it has been clicked. You should read the value inside of your callback, to get it's value at the time of clicking:
$('#submit').on('click', getInfo);
function getInfo() {
const userLocation = $('#location').val();
console.log(userLocation)
}
Here is working sample with small change of your code
$('#submit').on('click', function(){
getInfo();
});
function getInfo() {
const userLocation = $('#location').val();
console.log(userLocation)
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Forecatser</title>
<style>
#content { width: 400px; }
#request { text-align: center; }
.bl { width: 300px; }
#current { text-align: center; font-size: 2em; }
#upcoming { text-align: center; }
.condition { text-align: left; display: inline-block; }
.symbol { font-size: 4em; display: inline-block; }
.forecast-data { display: block; }
.upcoming { display: inline-block; margin: 1.5em; }
.label { margin-top: 1em; font-size: 1.5em; background-color: aquamarine; font-weight: 400; }
</style>
</head>
<body>
<div id="content">
<div id="request">
<input id="location" class='bl' type="text">
<input id="submit" class="bl" type="button" value="Get Weather">
</div>
<div id="forecast" style="display:none">
<div id="current">
<div class="label">Current conditions</div>
</div>
<div id="upcoming">
<div class="label">Three-day forecast</div>
</div>
</div>
</div>
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<script src="./weather.js"></script>
</body>
</html>
Please check the working demo
https://jsfiddle.net/o2gxgz9r/73662/
$(document).ready(function() {
$('#submit').on('click', getInfo);
function getInfo() {
const userLocation = $('#location').val();
alert(userLocation);
}
});
I am trying to get a JavaScript listener to work but nothing changes.
Here is the full code:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
#trigger {
padding: 20px;
background-color: red;
border: 1px solid white;
width: 100px;
cursor: pointer;
}
#box {
padding: 20px;
background-color: green;
border: 1px solid white;
width: 100px;
cursor: pointer;
}
</style>
</head>
<body>
<div id="trigger">Click Here</div>
<div id="box">
content should change
</div>
<script type="text/javascript">
document.addEventListener("click", () => {
document.getElementById("trigger"), () => {
document.getElementById("box").innerHTML = "New Box Text";
}
});
</script>
</body>
</html>
I know I can do this using jQuery, but I want to do it with just pure, vanilla JavaScript.
When I click on #trigger, #box text is not changing. What I'm I doing wrong?
In order to run your code only, when the DOM completely loaded and parsed, add an evenet listener under the DOMContentLoaded event, then use querySelector to select the element with the #trigger id, then add a click event listener to it and use querySelector again to select the element with #box id and modify its .innerHTML accordingly:
document.addEventListener('DOMContentLoaded', () => {
document.querySelector("#trigger").addEventListener('click', () => {
document.querySelector("#box").innerHTML = "New Box Text";
});
});
The great thing about using querySelector and also querySelectorAll is that they provide a similar functionality compared to jQuery, when selecting elements.
Example:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
#trigger {
padding: 20px;
background-color: red;
border: 1px solid white;
width: 100px;
cursor: pointer;
}
#box {
padding: 20px;
background-color: green;
border: 1px solid white;
width: 100px;
cursor: pointer;
}
</style>
</head>
<body>
<div id="trigger">Click Here</div>
<div id="box">
content should change
</div>
<script type="text/javascript">
document.addEventListener('DOMContentLoaded', () => {
document.querySelector("#trigger").addEventListener('click', () => {
document.querySelector("#box").innerHTML = "New Box Text";
});
});
</script>
</body>
</html>
Add the listener to the box element rather than the entire page:
document.getElementById("trigger").addEventListener("click", () =>
document.getElementById("box").innerHTML = "New Box Text"
);
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
#trigger {
padding: 20px;
background-color: red;
border:1px solid white;
width: 100px;
cursor: pointer;
}
#box {
padding: 20px;
background-color: green;
border:1px solid white;
width: 100px;
cursor: pointer;
}
</style>
</head>
<body>
<div id="trigger">Click Here</div>
<div id="box">
content should change
</div>
</body>
</html>
I'm trying to create a program where the user will input some text in a field and when pressing "Start" the text will go to a paragraph but it will be shown backwards.
Trying to do this with Html,jquery and Css.
How can I do this?
Here's the Html:
<!DOCTYPE html>
<html id="head">
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="BackTalk.js"></script>
<link rel="stylesheet" type="text/css" href="BackTalk.css">
<title>BackTalk</title>
</head>
<body id="body">
<div id="Main">
<form>
<input id="input" type="number" value="Start">
<button id="input2" onclick="">Start</button>
</form>
</div>
<form id="frm">
<p id="para"></p>
</form>
</body>
</html>
And the $/javascript (Main part I need help with as you can see):
$(document).ready(function () {
$('#input2').click(function () {
});
});
Css (Don't know if needed):
#head {
}
#body {
background-image: url('stardust.png');
}
#Main {
width: 230px;
padding: 10px;
border: 1px double #ffffff;
border-radius: 10px;
margin: auto;
}
#frm {
width: 230px;
height: 500px;
padding: 10px;
border: 1px double #ffffff;
border-radius: 10px;
margin: auto;
}
#input {
border-radius: 10px;
}
#input2 {
border-radius: 10px;
}
Try this http://jsfiddle.net/Tushar490/th778nfs/
$('#input2').click(function () {
var value=$('#input').val();
console.log($('#para').text(value.split("").reverse().join("")));
});
Not sure if this is exactly what you're looking for:
$(document).ready(function () {
$('#startbutton').click(function () {
$('#para').text($('#input').val().split('').reverse().join(''));
});
});
JSFiddle