CSS: Determine if an element has been totally scrolled

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Element: scrollHeight property - Web APIs | MDN (mozilla.org)

 

<!DOCTYPE html>
<html lang="en-US">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * 
            margin: 0;
            padding: 0;
        

        html,
        body 
            height: 100%;
        

        div 
            width: 300px;
            height: 500px;
            margin: 30px;
            border: 20px dashed violet;
            padding: 40px;
            background-color: plum;
            position: relative;
            overflow-x: scroll;
            overflow-y: scroll;
            display: flow-root;
        

        aside 
            width: 100px;
            height: 800px;
            background-color: peru;
            position: absolute;
            margin: 10px;
            padding: 20px;
            border: 30px dotted coral;
            top: 50px;
        
    </style>
</head>

<body>
    <div>
        <aside></aside>
    </div>
    <script>
        const div = document.querySelector(\'div\')
        const aside = document.querySelector(\'aside\')
        div.onscroll = function() 
            const sum = div.clientHeight + div.scrollTop
            console.log(sum, div.scrollTop)
            console.log(div.scrollHeight - sum)
        
    </script>
</body>

</html>

 

LF.391.Determine If Array Is Min Heap

Determine if the given integer array is min heap.

 1 public class Solution {
 2   public boolean isMinHeap(int[] array) {
 3     // Write your solution here
 4     if (array == null || array.length == 0) {
 5         return true ;
 6     }
 7     int pre = array[0] ;
 8     for (int i = 1; i<array.length; i++ ) {
 9         if (pre > array[i]) {
10             return false ;
11         }
12     }
13     return true ;
14   }
15 }

 

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