Tiktok

Animate a list of DOM elements one after another, where each animation starts only after the previous one completes.

Animate Elements in Sequence

Detect whether a function was invoked as a regular function call or as a constructor with the new keyword.

Function to calculate the angle between the two hands on a clock representing that time.

Implement the instanceof operator from scratch by walking the prototype chain to check if an object is an instance of a constructor.

Debouncing enhances performance by delaying function execution until a certain period of inactivity, preventing unnecessary calls.

Enhance the Event Emitter class to support method chaining.

Emits events and registers listeners for handling asynchronous, event-driven operations.

Convert a DOM element tree into a JSON object representation that captures the type, props, and children.

Convert a nested JSON object describing a DOM structure into actual HTML elements and render them.

Extend the functionality of the browser's localStorage to include an expiry feature.

Waits for all promises in an iterable to resolve and returns an array of their results or rejects immediately if any promise is rejected.

Recreate setInterval behavior using only setTimeout.

Throttling optimizes performance by limiting function execution to a specified rate, preventing excessive calls over short intervals.