JavaScript lexical environment is a data structure that holds an identifier-variable mapping. Where identifier refers to the name of variables/functions, and variable is the reference… Read More »Lexical environment in JavaScript
The JavaScript scope chain is simply the locations where identifiers are declared that are searched to resolve the value of an identifier. JavaScript resolves identifiers… Read More »Scope chain in JavaScript | Code
The JavaScript super keyword is used to access and call functions on an object’s parent. This is mainly used when you have to access a… Read More »JavaScript super keyword in Class
JavaScript’s new target meta property detects whether a function or constructor was called using the new operator. The new.target consists of the new keyword, a… Read More »JavaScript new target | Metaproperty
In JavaScript, every object has a prototype, including the prototype object. This “chain” goes all the way back until it reaches an object that has… Read More »JavaScript prototype chain | Simple
JavaScript Function chaining is nothing but grouping functions in one single line using dot notation. Function chaining or Method Chaining is a mechanism of calling… Read More »Function chaining in JavaScript | Pattern
The OR operator (double pipe) || uses the right value if the left is falsy, while the nullish coalescing operator ?? (double question mark) uses… Read More »JavaScript double question mark vs double pipe | Code