获得完整访问权限
新成为赞助商 ->
获得完整访问权限
JavaScriptReactAngularVueSvelteCSSHTMLTypeScript

JavaScript DSA 面试问题

使用 JavaScript 练习数据结构和算法的编码问题。
由前面试官解答
测试用例
在浏览器中编码

题目列表

JavaScript面试指南浏览我们的入门指南，在开始实践之前，先扎实掌握JavaScript面试准备。
0/5指南
指南
  • Selection SortImplement a function that performs a selection sort
    语言
  • StackImplement a stack data structure containing the common stack methods
    语言
  • 新
    Bubble SortImplement a function that performs a bubble sort
    语言
  • Count Set Bits in a Binary NumberImplement a function to find set bits in binary representation of a given integer
    语言
  • Find Duplicates in ArrayImplement a function to check if there are any duplicate numbers in the array
    语言
  • Find Missing Number in SequenceImplement a function to find the missing element in a sorted array
    语言
  • Insertion SortImplement a function that performs an insertion sort
    语言
  • Optimal Stock TradingImplement a function to find the maximum profit achievable by buying and selling a stock once
    语言
  • Pair sumImplement a function to find two numbers within an array of integers that add up to a target integer
    语言
  • String AnagramImplement a function to determine if two strings are anagram of each other
    语言
  • Binary Tree Maximum DepthImplement a function to find the maximum depth of a binary tree
    语言
  • Flip Binary TreeImplement a function to flip the nodes in a binary tree
    语言
  • Staircase Climbing CombinationsImplement a function to find the number of ways to reach at the top of staircase
    语言
  • Balanced BracketsImplement a function to determine if a string contains balanced brackets
    语言
  • Binary Tree EqualImplement a function to determine whether two binary trees are equal
    语言
  • Bit CountingImplement a function to find number of set bits from 0 to n
    语言
  • Bit ReversalImplement a function to flip the order of the bits in a given number
    语言
  • Linked List ReversalImplement a function to reverse a linked list
    语言
  • String PalindromeImplement a function to determine if a string is a palindrome
    语言
  • Linked List Detect CycleImplement a function to detect if there are cycles in a linked list
    语言
  • Binary Tree SubtreeImplement a function to check if a binary tree is a subtree of another binary tree
    语言
  • Linked Lists Combine Two SortedImplement a function to combine two sorted linked list
    语言
  • Meeting CalendarImplement a function to check if all meetings can be attended
    语言
  • Array Product Excluding CurrentImplement a function to find the product of elements in an array excluding the current element
    语言
  • Binary SearchImplement a function that performs binary search on an array of numbers
    语言
  • 新
    Binary Search TreeImplement a binary search tree data structure including essential BST operations
    语言
  • Binary TreeImplement a binary tree data structure including essential operations
    语言
  • Breadth-first SearchImplement a breadth-first search algorithm that traverses a directed graph in a breadth-first manner
    语言
  • Depth-first SearchImplement a depth-first search algorithm that traverses a directed graph in a depth-first manner
    语言
  • Heap SortImplement a function that performs a heap sort
    语言
  • Is the Graph a TreeImplement a function to determine if a graph is a valid tree
    语言
  • Maximum Water Trapped Between WallsImplement a function to find the maximum water volume between two walls in an array of walls
    语言
  • QueueImplement a queue data structure containing the common queue methods
    语言
  • 新
    Dijkstra's AlgorithmImplement Dijkstra's algorithm to find the shortest paths from a source vertex in a graph represented as an adjacency list.
    语言
  • 新
    Linked ListImplement a linked list data structure containing the common linked list methods
    语言
  • Merge SortImplement a function that performs a recursive merge sort
    语言
  • Quick SortImplement a function that performs a recursive quick sort
    语言
  • Topological SortImplement a function that performs a topological sort
    语言
  • Binary Tree Level Order TraversalImplement a function to find the level order traversal of a binary tree
    语言
  • Maximum Sum in Contiguous ArrayImplement a function to find the subarray with the maximum sum
    语言
  • Smallest element in rotated sorted arrayImplement a function to find the smallest element in rotated sorted array
    语言
  • Find Element in Rotated ArrayImplement a function to find an integer in a rotated sorted array
    语言
  • Maximum Product in Contiguous ArrayImplement a function to find the subarray which has the largest product
    语言
  • Binary Search Tree Kth Smallest ElementImplement a function to find the kth smallest node in a BST
    语言
  • Binary Search Tree Lowest Common AncestorImplement a function to find the LCA in a binary search tree
    语言
  • Count Islands in a GridImplement a function to count distinct islands in a 2D binary grid
    语言
  • Delete Nth Node from End of Linked ListImplement a function to delete the nth node from the end of a linked list
    语言
  • Distinct Paths in GridImplement a function to calculate distinct paths for a robot moving on an m x n grid
    语言
  • Matrix ZeroingImplement a function to set matrix rows and columns to zero
    语言
  • Merge Overlapping IntervalsImplement a function to merge overlapping intervals
    语言
  • Most Common ElementsImplement a function to determine the most common elements in an integer array
    语言
  • Neighborhood TheftImplement a function to find maximum money to rob without alerting police
    语言
  • Rearrange Linked ListImplement a function to rearrange the nodes in a linked list
    语言
  • Sum Without AdditionImplement a function to find the sum of two integers without using + and - operator
    语言
  • Triplet SumImplement a function to find all unique triplets with distinct indices that sum to 0
    语言
  • Validate Binary Search TreeImplement a function to validate whether a binary tree is a valid binary search tree
    语言
  • Combinations for Target SumImplement a function to count combinations that sum to the target
    语言
  • Course DependencyImplement a function to check if all courses can be completed given prerequisites
    语言
  • Decode MessageImplement a function to count ways to decode a numeric string
    语言
  • Longest Consecutive Number SequenceImplement a function to find the length of the longest consecutive number sequence
    语言
  • Longest Increasing SubsequenceImplement a function to find the length of the longest increasing subsequence
    语言
  • Minimum Coins for ChangeImplement a function to return minimum coins needed to make the given amount
    语言
  • Palindromic SubstringsImplement a function to count all palindromic substrings in a string
    语言
  • Segment WordsImplement a function to check whether a string be formed from dictionary words
    语言
  • String Anagram GroupsImplement a function to group an array of strings into anagrams
    语言
  • Task CoordinationImplement a function to find minimum intervals for tasks with cooldown
    语言
  • Trie (Prefix Tree)Implement a trie-prefix-tree with insert, search, and starts with functionality
    语言
  • Binary Tree Rebuilding from Preorder and Inorder TraversalsImplement a function to construct a binary tree from preorder and inorder traversals
    语言
  • Disjoint IntervalsImplement a function to determine the minimum amount of removals to get non-overlapping intervals
    语言
  • End of Array ReachableImplement a function to determine if the end of the array is reachable
    语言
  • Find the Longest Palindromic SubstringImplement a function to find the longest palindromic substring
    语言
  • Find Word in GridImplement a function to check the existence of a word in a grid
    语言
  • Graph Count Connected ComponentsImplement a function to count connected components in a graph
    语言
  • Longest Common SubsequenceImplement a function to find the longest common subsequence in two strings
    语言
  • Longest Non-repeating SubstringImplement a function to find the length of longest substring with unique characters
    语言
  • Longest Repeating Substring After ReplacementsImplement a function to find the longest uniform substring after up to k replacements
    语言
  • Matrix RotationImplement a function to rotate the given matrix by 90 degrees
    语言
  • Matrix Spiral TraversalImplement a function to traverse the matrix in spiral order
    语言
  • Merge New IntervalImplement a function to insert a new interval in the given intervals
    语言
  • Neighborhood Theft (Circular)Implement a function to find maximum money to rob in circular houses without alerting police
    语言
  • Ocean FlowImplement a function returning cells with water flow to both oceans
    语言
  • Word FinderImplement a data structure where words can be added and support wildcard searching
    语言
  • Graph CloneImplement a function to deeply clone a connected and undirected graph
    语言
  • Minimum Meeting Rooms NeededImplement a function to find the minimum number of required conference rooms
    语言
  • 新
    HeapImplement a heap data structure containing essential heap operations
    语言
  • Binary Tree Serialization and DeserializationImplement a function to serialize and deserialize a binary tree
    语言
  • Binary Tree Maximum Total PathImplement a function to find the maximum total of nodes in a binary tree path
    语言
  • Find Words in GridImplement a function to find all the words present in the grid
    语言
  • Linked Lists Combine K SortedImplement a function to combine k sorted linked lists
    语言
  • Shortest Substring Containing CharactersImplement a function to return the smallest substring of a string containing all characters from another string
    语言
  • Extraterrestrial LanguageImplement a function to verify and return an extraterrestrial language's alphabet order
    语言
  • Number Stream MedianImplement a function to find the median of a dynamic stream of integers
    语言

JavaScript 数据结构与算法面试题和答案

数据结构与算法 (DSA) 面试是软件工程职位中不可避免的一部分，尤其是在大型科技公司担任职位时。 作为一名前端工程师，掌握 DSA 对于编写高效、优化和可扩展的代码至关重要。 然而，许多前端开发人员发现自己优先考虑 UI 框架和 JavaScript 的复杂性，而不是算法问题解决，导致在 DSA 方面的练习和信心不足。

缺乏针对前端工程师的 DSA 资源进一步复杂化了准备工作。 大多数 DSA 材料是为一般的软件工程角色编写的，侧重于后端语言，如 Python、Java 和 C++。 虽然这些对于算法解释来说非常出色，但它们通常会忽略与前端工程师相关的特定工具和上下文。

弥合前端工程师的差距

为了应对这些挑战，我们开发了针对前端开发人员的 JavaScript 和 TypeScript 数据结构和算法问题的综合资源。 我们的材料由前高级工程师和顶级科技公司的前面试官创建，旨在帮助前端工程师建立对 DSA 的信心，同时坚持使用他们日常使用的工具。

我们资源的主要特点包括：

  1. 专为 JavaScript 和 TypeScript 量身定制：所有解决方案和解释均以 JavaScript 和 TypeScript 编写，这是前端开发中使用的主要语言。 这确保了前端工程师的更大可访问性和相关性。
  2. 专家提供的高质量内容：每个问题都由经验丰富的工程师精心设计，他们曾为领先的科技公司进行面试，保证了最高的质量并符合真实的面试标准。
  3. 前端特定上下文：问题和解决方案结合了前端开发人员可能在现实世界中遇到的场景和约束，确保这些技能具有实用性并直接适用。

DSA 主题的全面覆盖

我们的资源涵盖了广泛的主题，从基本数据结构到高级算法。 这些包括：

关键数据结构：

  • 数组：了解如何有效地操作和遍历数组，解决子数组总和和滑动窗口模式等问题。
  • 链表：深入了解在单链表和双链表中遍历、插入和删除节点。
  • 堆栈和队列：了解它们在平衡括号、广度优先搜索和撤消功能等问题中的应用。
  • 树和图：掌握树遍历技术（中序、前序、后序）、最短路径算法（Dijkstra、BFS）和图搜索技术。
  • 哈希表：解决涉及高效查找、重复检测和频率计数的问题。

核心算法：

  • 排序算法：实现 QuickSort、MergeSort 和 Bubble Sort，同时了解它们的时间和空间复杂度。
  • 搜索算法：探索二分搜索、线性搜索及其在现实世界中的应用。
  • 递归和动态规划：解决涉及递归树、重叠子问题和动态规划模式（如背包、斐波那契数列和子序列检测）的问题。

实时练习和反馈

为了使您的准备工作无缝高效，我们的平台提供了一个浏览器内编码工作区，使您无需任何设置即可直接练习编码。 主要功能包括：

  1. 即时反馈：编写代码，针对全面的自动化测试用例运行它，并接收关于正确性和性能的即时反馈。 这模拟了真实的面试条件，并帮助您更快地迭代。
  2. 详细解释：每个问题都附有分步分解、多种解决方案方法和最佳实践，确保您彻底掌握基本概念和模式。
  3. 实用重点：问题旨在反映现实世界的问题解决场景，确保您的技能可以直接转移到实际工作中遇到的挑战。

使用我们资源的优势

  • 使用 JavaScript 和 TypeScript 掌握 DSA：学习使用与您的前端角色最相关的语言来实现高效的算法和数据结构。
  • 面试时的信心：通过练习以领先科技公司实际面试问题为蓝本的问题来建立信心。
  • 更快地学习：利用精心设计的解释和即时反馈来加速您的学习曲线。
  • 提高实用的前端技能：应对挑战，提高您编写高性能代码和设计可扩展解决方案的能力，这两者对于前端开发至关重要。

相关列表

如果您正在寻找更具体的内容，请查看下面的其他问题列表：