30 seconds of code provides a curated collection of short code snippets for all your development needs. Our collection spans many topics, ranging from simple coding problems to theoretical concepts and development techniques.
Take a deeper dive into React's rendering process and understand how to make small yet powerful tweaks to optimize performance.
Renders a checkbox list that uses a callback function to pass its selected value/values to the parent component.
Boolean traps can cause readability and maintainability issues in your code. Learn what they are, how to spot and fix them in this article.
Creates a list with floating headings for each section.
Create your own static file server with Node.js in just 70 lines of code.
Groups the given data into
k clusters, using the k-means clustering algorithm.
Learn everything you need to know about higher-order functions with this short guide and level up your programming skills.
A tree is a data structure consisting of a set of linked nodes representing a hierarchical tree structure.