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I'm a beginner in JavaScript, and I have an issue running this script:
<html>
<head>
<title>some tests with javascript</title>
</head>
<body>
<p id="demo">Here I'm testing some code with javascript </p>
<script >
function myFunction() {
x = document.getELementById("demo");
x.innerHTML = "Hi! my content has been changed ! ^^";
}
</script>
<button type="button" onclick="myFunction()">click me !</button>
</body>
</html>
Why is the content of the demo element not changing after I click the button?
You have a spelling error. Instead of:
.getELementById //Here you have L with uppercase, has to be lowercase
do this
.getElementById //Check the 'l'
Cheers
Fiddle
Change
x = document.getELementById("demo");
into
x = document.getElementById("demo");
Related
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I know I'm a beginner at this, but I really need to learn the rules. I'm trying to make a simple example of javascript. Its a box with three buttons, but for some reason only one of them works. They do have different ID types, so there must be another rule I don't know.
<!DOCTYPE html>
<html>
<head>
<title>Javascript box</title>
</head>
<body>
<p>Press buttons to change the box</p>
<div id="box" style="height:100px; width:100px; background-color: limegreen; margin:50px"></div>
<br>
<button id="less">less</button>
<button id="more">more</button>
<button id="none">Reset</button>
<script type="text/javascript">
document.getElementById("less").addEventListener("click", function(){
document.getElementById("box").style.height = "25px";
});
document.getElementByID("more").addEventListener("click", function(){
document.getElementById("box").style.height = "150px";
});
document.getElementById("none").addEventListener("click", function(){
document.getElementById("box").style.height = "100px";
});
</script>
</body>
</html>
For the second addEventListener, there's a typo.
In document.getElementByID, the D should not be capitalised.
A good way to debug these issues is to look at the console in developer tools.
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<!DOCTYPE html>
<html>
<head>
<script>
let counter= 0;
function count() {
counter++;
document.querySelector('#counter').innerHTML= counter;
}
</script>
<title>My Webpage</title>
</head>
<body>
<h1 id="counter">0</h1>
<button onlclick="count()">Click Here!</button>
</body>
</html>
when i am running it on internet explorer and also on an online IDE for html the page displays 0 and click here but when i click on the button the page remains the same and the 0 not changes to 1.
Please help what changes can i make
You have a typo in onclick, here is the working version.
let counter = 0;
function count() {
counter++;
document.querySelector('#counter').innerHTML = counter;
}
<!DOCTYPE html>
<html>
<head>
<title>My Webpage</title>
</head>
<body>
<h1 id="counter">0</h1>
<button onclick="count()">Click Here!</button>
</body>
</html>
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Closed 7 years ago.
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I really don't know what I am doing wrong but my site just won't update the .innerHtml of the heading. There is no error in the browser console and console.log() returns the right string ("hhh").
Both elements with id = test and teet won't update their html
<html>
<head>
<title>
test title
</title>
</head>
<body>
<h1 id="teet">TEST HEADING</h1>
Search :
<input id="input">
<button onclick="load()" id="submit" type="button"> search </button>
<br>
<h1 id="test"> Test</h1>
<script>
function load() {
var test = document.getElementById("test").innerHtml = "hhh";
console.log(test);
}
</script>
</body>
</html>
It's innerHTML with capital letters
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Closed 8 years ago.
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My html is like this:
<!DOCTYPE html>
<html>
<head>
<title>
Event Handling
</title>
</head>
<body>
<h1> This is the chapter in which I am handling Events.The site you should visit is: </h1>
<b>here<b>
<script src="events.js"></src>
</body>
</html>
The javascript is like this:
var link = document.getElementsByTagName("a")[0];
link.onclick = MyEventHandler;
function MyEventHandler()
{
alert("ouch!");
return false;
}
It is not working, but using inling event handler I am doing it successfully. Please helop me.
You need to assign the event handler function, not the return value of calling that function.
link.onclick = MyEventHandler;
(Also note that you need to use the end tag </script> not </src>.)
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Closed 8 years ago.
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EDIT Here is new code but it is still not working for me.
HTML:
<!DOCTYPE html>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="mycss.css">
<script src="myjavascript2.js" type="text/javascript"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
</head>
<body>
<button onclick="myFunction()">Play</button>
<p id="test"></p>
</body>
</html>
Javascript:
var things = ['rock','paper','scissors'];
function myFunction() {
var i = Math.floor(Math.random()*things.length));
document.getElementById("test"+(i+1)).innerHTML=things[i];
}
I added this text so that it would let me post the edit, please ignore this.
You could simply replace your whole code with
var things = ['rock','paper','scissors'];
var i = Math.floor((Math.random()*things.length));
document.getElementById("test").innerHTML=things[i];
This would also let you more easily deal with other operations, like finding a winner.