When one of the element(id) of a form is clicked, i would like to listen to that event, and change the background of that element.
$(document).ready(function(){
$('form').on('click', function(e){
var x = e.target.id;
$(x).css('background-color',color);
return false;
});
}
<form>
<div id="a">Item1</div>
<div id="b">Item2</div>
<div id="c">Item3</div>
</form>
Your code will end up looking for tag names because the selector is
$("b")
If you want to do it the way you have it, you would need to add the missing #
.
$("#" + x).css('background-color',color);
But there is no need to look up the element when you already have a reference to is. Use event delegation and this
$('form').on('click', 'div', function(e){
$(this).css('background-color',color);
});
Why bother using e.target
? Just update your code to use $(this)
:
$(function() {
$('form > div').on('click', function(e) {
e.preventDefault();
$(this).css('backgroundColor', color);
});
});
This will work out. Take care of your tags.
$(document).ready(function(){
$('form').on('click', function(e){
var x = e.target.id;
$("#"+x).css('background-color',"red");
return false;
});
});
The thing happening to you is that event.target.id returns a string representing the id of the element, not a selector. So where you use $(x).... you have to use $('#'+x), your actual code does not work because the selector for the background change is not looking for an element with the X value on the Id but for an element called like the value of X (eg. x="a", then it's looking for elements)
Here's my "lowly" try:
<!DOCTYPE html>
<html lang = 'es'>
<head>
<title> My Test </title>
</head>
<body>
<form>
<div id="a"> Item1 </div>
<div id="b"> Item2 </div>
<div id="c"> Item3 </div>
</form>
<script>
function addBackgroundColor(e){
var index = parseInt(Math.random() * 4); // the number of the multiplier has to be equal to the length of the array colorsList.
e.target.style.backgroundColor = colorsList[index];
}
var colorsList = ['blue','red','green','yellow','orange']; //add others colors here if you want.
var divsList = document.getElementsByTagName('div');
for (var i in divsList){
divsList[i].addEventListener('click', addBackgroundColor);
}
</script>
</body>
</html>
No need to go fancy. Just do
$(document).ready(function(){
$('form div').on('click', function(e){
$(this).css('background-color',color);
return false;
});
}
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