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Interview Question - let vs. const vs. var

Β· One min read
Nishant Mendiratta

Promises ( polyfill of Promise all, race, allSettled )​

Implement Async parallel, Async series which executes a set of async tasks parallel and in series​

Implement Retry API with n retry​

Build a Promise from Scratch​

Currying with example​

String.prototype.repeat​

Implement the compose() and pipe() polyfill .​

Design patterns like singleton, factory patterns, etc​

Implement the publisher-subscriber pattern in javascript​

Implement the map, filter, reduce, and for Each polyfill​

Implement the Function .bind, call, apply method on the Function Prototype​

Prototype and prototype inheritance​

How rendering works in the browser​

Event delegation and event propagation in js​

Implement Memoization​

Progressive Web application​

Clone an Object​

Debouncing and Throttling​

Implement clearAllTimeout()​

Event Target β€” addEventListener, removeEventListener, dispatchEvent​

Intersection Observer​

Summary

Resources​

Differences Between These Keywords