BFE
.dev
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: JavaScript
tag: Algorithm
10. first bad version
JavaScript
Algorithm
medium
4613 accepted
58. get DOM tree height
JavaScript
Algorithm
DOM
medium
4600 accepted
113. Virtual DOM I
JavaScript
Algorithm
DOM
medium
3119 accepted
13. Implement a Queue by using Stack
JavaScript
Algorithm
medium
2580 accepted
68. get DOM tags
JavaScript
Algorithm
DOM
medium
2564 accepted
110. serialize and deserialize binary tree
JavaScript
Algorithm
medium
2087 accepted
168. move zeros
JavaScript
Algorithm
medium
2048 accepted
63. create `_.cloneDeep()`
JavaScript
Algorithm
Lodash
medium
1845 accepted
103. implement Math.sqrt()
JavaScript
Algorithm
medium
1553 accepted
86. Generate Fibonacci Number
JavaScript
Algorithm
medium
1206 accepted
66. remove duplicates from an array
JavaScript
Algorithm
medium
1160 accepted
152. Find Top k Elements
JavaScript
Algorithm
medium
1090 accepted
24. create a Priority Queue in JavaScript
JavaScript
Algorithm
medium
1025 accepted
55. highlight keywords in HTML string
JavaScript
Algorithm
medium
1012 accepted
43. implement Quick Sort
JavaScript
Algorithm
medium
904 accepted
41. implement Merge Sort
JavaScript
Algorithm
medium
815 accepted
82. find available meeting slots
JavaScript
Algorithm
medium
798 accepted
166. validate number string
JavaScript
Algorithm
string
medium
738 accepted
136. find median of two sorted array
JavaScript
Algorithm
medium
699 accepted
45. find the K-th largest element in an unsorted array
JavaScript
Algorithm
medium
671 accepted
111. Count palindromic substrings
JavaScript
Algorithm
string
medium
636 accepted
108. Implement a Stack by using Queue
JavaScript
Algorithm
medium
606 accepted
112. remove duplicate characters in a string
JavaScript
Algorithm
string
medium
535 accepted
75. implement BigInt subtraction
JavaScript
Algorithm
medium
379 accepted
169. LRU - Chrome storage automatic eviction
JavaScript
Algorithm
medium
319 accepted
124. calculate arithmetic expression
JavaScript
Algorithm
medium
196 accepted
126. BigDecimal addition
JavaScript
Algorithm
medium
55 accepted
129. BigDecimal Division
JavaScript
Algorithm
medium
34 accepted
128. BigDecimal multiplication
JavaScript
Algorithm
medium
33 accepted