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barGraph.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="barGraph.css">
</head>
<body>
<div class="container" id="output">
</div>
<div>
<input type="button" value="Sort" onclick="sortList()">
<input type="button" value="Reset" onclick="resetDataDefault()">
</div>
</body>
<script>
var data = [50,40,20,70,10];
var defData = [50,40,20,70,10];
function showList(arr){
var newArr = arr.map((val, index) => {
return`<div class="item item-${index+1}" name="item" onclick="valueAlert(${index})" style="height: ${val}%"></div>`
})
return document.getElementById('output').innerHTML = newArr.join('')
}
function sortList(){
var newData = data.sort((a,b) => a-b)
var items = document.getElementsByName("item");
console.log(newData);
console.log(items);
// items.forEach((val, index) => {
// val.style.height = `${newData[index]}%`
// })
for (let i = 0; i < items.length; i++) {
items[i].style.height = `${newData[i]}%`
}
}
function resetDataDefault(){
var items = document.getElementsByName("item");
items.forEach((val, index) => {
val.style.height = `${defData[index]}%`
})
}
function valueAlert(index){
var items = document.getElementsByName("item");
alert(items[index].style.height)
}
showList(data)
</script>
</html>