BFE
.dev
buy us
a coffee
EN
Practice
Explore
EN
JavaScript Coding Questions
As a Front-End developer, JavaScript is the core skill of everything
Sort
Difficulty
Solved status
Company
Sort: most accepted
Difficulty: medium
tag: Algorithm
58. get DOM tree height
JavaScript
Algorithm
DOM
medium
4551 accepted
10. first bad version
JavaScript
Algorithm
medium
4544 accepted
165. remove characters
Algorithm
medium
3725 accepted
113. Virtual DOM I
JavaScript
Algorithm
DOM
medium
3087 accepted
13. Implement a Queue by using Stack
JavaScript
Algorithm
medium
2539 accepted
68. get DOM tags
JavaScript
Algorithm
DOM
medium
2520 accepted
104. Traverse DOM level by level
JavaScript
Algorithm
DOM
medium
2514 accepted
110. serialize and deserialize binary tree
JavaScript
Algorithm
medium
2067 accepted
168. move zeros
JavaScript
Algorithm
medium
1978 accepted
63. create `_.cloneDeep()`
JavaScript
Algorithm
Lodash
medium
1794 accepted
103. implement Math.sqrt()
JavaScript
Algorithm
medium
1536 accepted
86. Generate Fibonacci Number
JavaScript
Algorithm
medium
1179 accepted
66. remove duplicates from an array
JavaScript
Algorithm
medium
1138 accepted
152. Find Top k Elements
JavaScript
Algorithm
medium
1076 accepted
24. create a Priority Queue in JavaScript
JavaScript
Algorithm
medium
1004 accepted
55. highlight keywords in HTML string
JavaScript
Algorithm
medium
999 accepted
43. implement Quick Sort
JavaScript
Algorithm
medium
894 accepted
41. implement Merge Sort
JavaScript
Algorithm
medium
801 accepted
82. find available meeting slots
JavaScript
Algorithm
medium
771 accepted
166. validate number string
JavaScript
Algorithm
string
medium
722 accepted
136. find median of two sorted array
JavaScript
Algorithm
medium
684 accepted
45. find the K-th largest element in an unsorted array
JavaScript
Algorithm
medium
668 accepted
111. Count palindromic substrings
JavaScript
Algorithm
string
medium
630 accepted
108. Implement a Stack by using Queue
JavaScript
Algorithm
medium
597 accepted
112. remove duplicate characters in a string
JavaScript
Algorithm
string
medium
528 accepted
75. implement BigInt subtraction
JavaScript
Algorithm
medium
369 accepted
169. LRU - Chrome storage automatic eviction
JavaScript
Algorithm
medium
307 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