JavaScript Coding

This function counts the elements in a nested array that satisfy a given condition (callback function).

Filter multi dimensional array that can contain any type of data.

Record the clicks for each domain and subdomain.

Determine availability within a calendar, analyzing a set of times in 24-hour format against a desired slot.

Currying is a technique of translating a function that takes multiple arguments into a sequence of functions.

Cycle through arguments in sequence upon invocation.

Currying is a technique of translating a function that takes multiple arguments into a sequence of functions.

Closure is not capturing a value, it is preserving access to a variable.

Classic example of why developers often use the self pattern (or arrow functions)

A stack that also tracks minimum and maximum values efficiently, enabling quick retrieval.

Find the minimum height of the DOM tree.

Traverse DOM tree and flatten it into a one-dimensional array in breadth-first order.

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

How can I abort a Fetch API request in JavaScript, for instance, based on user actions or specific conditions?

Function that converts a hexadecimal color code to an RGB color code.

Processing data sequentially through functions, where each uses the previous output as input.

Groups the elements of an array based on a specified criterion.

Analyze the data of a song.

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

Convert snake case string to camel case string.

Implement a simple assertion function similar to Jest's expect function

Groups the elements of an array based on a specified criterion.

Parse numbers from strings using character codes.

polyfill function that replicates the behavior of the built-in Function.prototype.apply() method.

polyfill function that replicates the behavior of the built-in Function.prototype.bind() method.

polyfill function that replicates the behavior of the built-in Function.prototype.call() method.

Create a deep copy of an object

Deep equality checks if two objects or arrays have the same properties and values, including the equality of the nested objects.

Seamlessly combines multiple objects, respecting the intricacies of nested structures.

Enhance a given class to return immutable copies of its instances and provide a method to check their mutability.

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

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

Map an array asynchronously.

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

Converts a callback-based function to a promise-based function.

What gets logged when the following code is executed?

When the condition is an asynchronous operation, it adds a layer of complexity.

When the condition is an asynchronous operation, it adds a layer of complexity.

Start, pause, reset, and get the current value of the counter.

Executes multiple asynchronous functions concurrently, without waiting for any to complete before starting the next.

The function retries a promise returning function with optional delays until success or a max attempt limit.

Executes asynchronous functions in sequence, each starting only after the previous one has completed.

A function that clears all active JavaScript intervals at once.

A function that clears all active JavaScript timeouts at once.