DSA

Given an array of objects with user data, merge the data combining the data of each user by adding their duration and equipment data. Equipment used must be merged without duplicates and then sorted in alphabetical order. 🔗 Data Merging 🟡 Medium 🧩 Pattern – Arrays & Objects Related: Join Two Arrays… Read More »Merge User Data – JavaScript

promise.all takes an iterable (objects that can be iterated over, usually array) as an input and returns a single promise which is resolved when all the promises in the list are resolved. Or it rejects immediately even if one of the input promises is rejected or throws an error. 🔗 Promise.all 🟡 Medium… Read More »Write a polyfill for promise.all()

Write a JavaScript function to check the types for each 🔗 Type Utilities 🟢 Easy🧩 Pattern – JavaScript Essentials Note ✍️ This object inherits from Object.prototype, so it has access to built-in methods like .toString(), .hasOwnProperty(). This means it doesn’t inherit any properties or methods (like .toString, .hasOwnProperty, etc.) but it is an object. JS Code to check… Read More »Check types in JavaScript

Throttling is used to control how frequently a function is executed. With throttling applied, the function runs immediately on the first call, and it can only be called after a certain time any subsequent calls within during that waiting period are ignored. 🔗 Throttle 🟡 Medium 🧩 Pattern – JavaScript Essentials Related: Debounce… Read More »Throttle in JavaScript

Create a function called flatten that produces a new array by merging all nested arrays into a single, flat array. 🔗 Flatten 🟡 Medium🧩 Pattern – JavaScript Essentials Related: Flatten Deeply Nested Array – 2625 | Matrixread Recursive Code Using Reduce

Create a flexible utility function classNames designed to combine various types of inputs into a single string of CSS classes. This function should be able to process: 🔗Classnames 🟡 Medium🧩 Pattern – JavaScript Essentials Examples classNames function