In React, a component goes through different phases in its lifecycle, and at certain points in each phase, React will call specific methods on the component. These methods are known as lifecycle methods. componentDidMount(), componentDidUpdate(prevProps, prevState), componentWillUnmount(), shouldComponentUpdate(nextProps, nextState)
componentDidMount() is a lifecycle method in React that is called after a component has been added to the DOM. useEffect is a Hook in React that allows you to synchronize a component with an external system. It serves a similar purpose as componentDidMount(), componentDidUpdate(), and componentWillUnmount() lifecycle methods combined.
The input “nums” is supposed to be an array of unique integers ranging from 1 to nums.length. However there is a mistake: one of the […]
The Fibonacci sequence/series is a set of numbers that starts with a one (1) or a zero (0), followed by a one, and proceeds based on the rule that each number is equal to the sum of the preceding two numbers. If the Fibonacci sequence is denoted F (n), where n is the first term in the sequence, the following equation obtains for n = 0, where the first two terms are defined as 0 and 1 by convention:
There are a number of tiles on the floor, each numbered with a different non-negative integer. Treat this set of tiles as an array. You […]
In the world there are so many people who likes to buy expensive things. These types of people mainly like to use popular and expensive things. In India, there are also so many people who loved to buy premium things. Many people in India thinks that only international brands are big and good for them, so they do not trust Indian brands.