Cannot read property 'appendChild' of null
$( document ).ready(function() {
// maybe the element with the id has not yet loaded
});Cannot read property 'appendChild' of null
$( document ).ready(function() {
// maybe the element with the id has not yet loaded
});Uncaught TypeError: Cannot read property 'appendChild' of null
<!DOCTYPE html>
<html>
<head>
<title>space</title>
<style type="text/css">
#board{
position: relative;
height: 450px;
width: 450px;
margin: 40px auto;
border: 2px solid #fff;
background: #000;
}
#jet{
position: absolute;
width: 45px;
height: 40px;
background: #45a76a;
background-size: contain;
background-repeat: no-repeat;
left: 50%;
bottom: 0px;
}
.rockes{
position: absolute;
top: 0px;
width: 50px;
height:50px;
background: #a76f45;
background-size: contain;
background-repeat: no-repeat;
}
</style>
</head>
<body>
<div id="board" defer>
<div class="rockes"></div>
<div id="jet"></div>
</div>
<script type="text/javascript">
var jet =document.getElementById('#jet');
var board =document.getElementById('#board');
window.onkeydown = function(e){
var jet =document.querySelector('#jet');
jetX = parseInt(window.getComputedStyle(jet,null).getPropertyValue('left'));
if( e.keyCode == 39 && jetX < 400){
var jet =document.querySelector('#jet');
jetX = parseInt(window.getComputedStyle(jet,null).getPropertyValue('left'));
jet.style.left = jetX + 10 + "px";
}
if( e.keyCode == 37 && jetX > 5){
var jet =document.querySelector('#jet');
jetX = parseInt(window.getComputedStyle(jet,null).getPropertyValue('left'));
jet.style.left = jetX - 10 + "px";
}
}
var generaterRocks = setInterval(() => {
var board =document.getElementById("#board");
const rock =document.createElement("div");
rock.classList.add("rocks");
var rockleft =parseInt(window.getComputedStyle(rock,null).getPropertyValue('left'));
rock.style.left =Math.floor(Math.random()*460) + "px";
board.appendChild(rock);
},1500);
</script>
</body>
</html>Uncaught TypeError: Cannot read property 'appendChild' of null
<script type="text/javascript">
var jet =document.getElementById('#jet');
var board =document.getElementById('#board');
window.onkeydown = function(e){
var jet =document.querySelector('#jet');
jetX = parseInt(window.getComputedStyle(jet,null).getPropertyValue('left'));
if( e.keyCode == 39 && jetX < 400){
var jet =document.querySelector('#jet');
jetX = parseInt(window.getComputedStyle(jet,null).getPropertyValue('left'));
jet.style.left = jetX + 10 + "px";
}
if( e.keyCode == 37 && jetX > 5){
var jet =document.querySelector('#jet');
jetX = parseInt(window.getComputedStyle(jet,null).getPropertyValue('left'));
jet.style.left = jetX - 10 + "px";
}
}
var generaterRocks = setInterval(() => {
var board =document.getElementById("#board");
const rock =document.createElement("div");
rock.classList.add("rocks");
var rockleft =parseInt(window.getComputedStyle(rock,null).getPropertyValue('left'));
rock.style.left =Math.floor(Math.random()*460) + "px";
board.appendChild(rock);
},1500);
</script>Uncaught TypeError: Cannot read property '_calendar' of undefined
you just passed wrong parameter value inside date parameterCopyright © 2021 Codeinu
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