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Explain the differences between let, var, and const in JavaScript. In JavaScript, let, var, and const are used to declare variables. The main differences between them are in their scope and their ability to reassign values: How does event bubbling and capturing work in JavaScript? In JavaScript, event bubbling and capturing refer to the two … Read more
Advanced JavaScript techniques and concepts like Prototypal inheritence, websockets and WebRTC can be used to create more complex and powerful web applications. Prototypal inheritance is a way of creating objects in JavaScript that is based on prototyping, rather than classes. WebSockets are a web technology that provides full-duplex communication channels over a single TCP connection. … Read more
Thunk A thunk usually refers to a small piece of code that is called as a function; does some small thing; and then JUMPs to another location; which is usually a function; instead of returning to its caller. Assuming the JUMP target is a normal function, when it returns, it will return to the thunk’s caller. The word … Read more
In JavaScript, the rest operator (also called the spread operator) allows us to represent an indefinite number of elements as an array. It’s a helpful tool that can make our code more concise and easier to read.Here’s an example of how the rest operator works: In this example, the function addNumbers takes an indefinite number … Read more
JavaScript generators is an amazing and brilliant concept; yet it’s very confusing when to use them. They let us write infinite loops that terminate. The yield values from functions before they finish and build lazy data structures. The magic lies in the ability of generators functions to be paused and then resumed again. But before … Read more