A closure is a function that captures variables from where it is defined (or its lexical scope).

The stale closures is a pitfall of React hooks when an outdated variable is captured by a closure.

A compiled list of simple but tricky questions you might be asked during a JavaScript coding interview.

Map complements plain objects. Map's main benefits over plain object is allowing keys of any type and any name.

Temporal Dead Zone forbids the access of variables and classes before declaration in JavaScript.

Efficient techniques to solve the callback hell problem of React render props.

A detailed guide on how to use efficiently function parameters in JavaScript.

How to handle easily 'this' value in JavaScript using an additional variable, arrow functions, manual binding, or fat arrow methods.

The fast-path optimization increases at least twice the performance of JavaScript spread operator.

Array.from() transforms array-like objects to arrays, generates ranges, removes arrays duplicates, initializes and clones arrays.