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If you played with the fibonacci function from Section 6.7, you might have noticed thatthe bigger the argument you provide, the longer the function takes to run. Furthermore,the run time increases very quickly.To understand why, consider Figure 11.2,…
Got the idea form this lesson. Not sure whether it is the ncessary, no othere better way to handle it. Have a TodoList component, every time types in NewTodo input fields, will trigger the re-rendering for all components. import React, { useState, us…
A new Higher Order Component (HOC) was recently released in React v16.6.0 called React.memo. This behavior of the HOC is similar to what you’d get when using React.PureComponent or shouldComponentUpdate in a React Class Component. However, now with t…