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JavaScript Coding Questions
As a Front-End developer, JavaScript is the core skill of everything
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Sort: most accepted
tag: JavaScript
tag: Algorithm
10. first bad version
JavaScript
Algorithm
medium
4571 accepted
58. get DOM tree height
JavaScript
Algorithm
DOM
medium
4564 accepted
167. Intersection of unsorted arrays
JavaScript
Algorithm
easy
4387 accepted
162. find the single integer
JavaScript
Algorithm
easy
3941 accepted
25. Reorder array with new indexes
JavaScript
Algorithm
easy
3705 accepted
113. Virtual DOM I
JavaScript
Algorithm
DOM
medium
3092 accepted
13. Implement a Queue by using Stack
JavaScript
Algorithm
medium
2554 accepted
68. get DOM tags
JavaScript
Algorithm
DOM
medium
2528 accepted
104. Traverse DOM level by level
JavaScript
Algorithm
DOM
medium
2524 accepted
91. invert a binary tree
JavaScript
Algorithm
easy
2446 accepted
110. serialize and deserialize binary tree
JavaScript
Algorithm
medium
2074 accepted
168. move zeros
JavaScript
Algorithm
medium
2001 accepted
47. reverse a linked list
JavaScript
Algorithm
easy
1825 accepted
63. create `_.cloneDeep()`
JavaScript
Algorithm
Lodash
medium
1813 accepted
163. integer to roman numerals
JavaScript
Algorithm
easy
1649 accepted
40. implement Bubble Sort
JavaScript
Algorithm
easy
1570 accepted
103. implement Math.sqrt()
JavaScript
Algorithm
medium
1544 accepted
107. Find the largest difference
JavaScript
Algorithm
easy
1411 accepted
81. merge sorted arrays
JavaScript
Algorithm
easy
1376 accepted
138. Intersection of two sorted arrays
JavaScript
Algorithm
easy
1360 accepted
120. create `isPrime()`
JavaScript
Algorithm
easy
1289 accepted
106. Find two numbers that sum up to 0
JavaScript
Algorithm
easy
1282 accepted
102. validate string of parentheses
JavaScript
Algorithm
string
easy
1271 accepted
48. search first index with Binary Search(possible duplicate array)
JavaScript
Algorithm
easy
1205 accepted
86. Generate Fibonacci Number
JavaScript
Algorithm
medium
1187 accepted
87. longest substring with unique characters
JavaScript
Algorithm
easy
1174 accepted
66. remove duplicates from an array
JavaScript
Algorithm
medium
1149 accepted
152. Find Top k Elements
JavaScript
Algorithm
medium
1081 accepted
109. implement `Math.pow()`
JavaScript
Algorithm
easy
1065 accepted
24. create a Priority Queue in JavaScript
JavaScript
Algorithm
medium
1009 accepted
49. search last index with Binary Search(possible duplicate array)
JavaScript
Algorithm
easy
1006 accepted
55. highlight keywords in HTML string
JavaScript
Algorithm
medium
1000 accepted
100. detect circle in linked list
JavaScript
Algorithm
easy
938 accepted
42. implement Insertion Sort
JavaScript
Algorithm
easy
932 accepted
43. implement Quick Sort
JavaScript
Algorithm
medium
896 accepted
41. implement Merge Sort
JavaScript
Algorithm
medium
805 accepted
44. implement Selection Sort
JavaScript
Algorithm
easy
799 accepted
50. search element right before target with Binary Search(possible duplicate array)
JavaScript
Algorithm
easy
794 accepted
82. find available meeting slots
JavaScript
Algorithm
medium
780 accepted
166. validate number string
JavaScript
Algorithm
string
medium
728 accepted
51. search element right after target with Binary Search(possible duplicate array)
JavaScript
Algorithm
easy
725 accepted
136. find median of two sorted array
JavaScript
Algorithm
medium
696 accepted
45. find the K-th largest element in an unsorted array
JavaScript
Algorithm
medium
669 accepted
62. implement BigInt addition
JavaScript
Algorithm
easy
658 accepted
111. Count palindromic substrings
JavaScript
Algorithm
string
medium
633 accepted
108. Implement a Stack by using Queue
JavaScript
Algorithm
medium
601 accepted
112. remove duplicate characters in a string
JavaScript
Algorithm
string
medium
532 accepted
137. binary tree vertical traversal
JavaScript
Algorithm
hard?
465 accepted
75. implement BigInt subtraction
JavaScript
Algorithm
medium
370 accepted
169. LRU - Chrome storage automatic eviction
JavaScript
Algorithm
medium
308 accepted
124. calculate arithmetic expression
JavaScript
Algorithm
medium
195 accepted
126. BigDecimal addition
JavaScript
Algorithm
medium
54 accepted
129. BigDecimal Division
JavaScript
Algorithm
medium
34 accepted
128. BigDecimal multiplication
JavaScript
Algorithm
medium
33 accepted
127. BigDecimal subtraction
JavaScript
Algorithm
few challengers
27 accepted