The useEffect Hook allows you to perform side effects in your components. It takes two arguments, first is setup function, a function with your effect's logic. and second is dependencies, which is an optional argument useEffect(<setup>, <dependencies>) Example: Dependencies is an optional argument,
Hooks allow function components to have access to state and other React features. Hooks allow us to "hook" into React features such as state and lifecycle methods. Types of Hooks: 1) useState() :This hook helps to manage state. You provide an initial value, and it returns two things:
The JavaScript reduce method takes each value of an array, and applies reducer function such that it changes the array into a single value. Syntax of .reduce() method: array.reduce((accumulator, currentValue, index, array) =>{....}, initialValue} The .reduce() method takes two arguments : 1. The first is reducer function, which is
In JavaScript scope and closure are two fundamental concepts, scope determines the accessibility of variables, while closures are functions that keep certain variables safe and accessible even after their original functions have finished running. Scope In JavaScript, scope defines where variables can be accessed or referenced. While some variables can