Usestate - React Hooks: Understanding React UseState and Their Use Cases

2023.01.20 00:43:43

React useState Hook

For this reason, the first thing you need to consider is trying to flatten your state object s.

  • It should be pure, should take no arguments, and should return a value of any type.

  • I created another constant there for email and password and it worked just fine so I'm not sure why my useState constants aren't working.


Why did you pass the anonymous function that returns the result of expensiveComputation into useState… instead of just passing the result of expensiveComputation itself? However, for that purpose, it would be better to use nested objects: { 'row1' : { 'key1' : 'value1', 'key2' : 'value2' }, 'row2' : { 'key3' : 'value3', 'key4' : 'value4' } } But the problem when working with multidimensional arrays and nested objects is that Object.

  • And the value returned by the function will be used as the initial state.

  • React limits the number of renders to prevent an infinite loop.

useState in React: A complete guide

Like books, movies, and still trying many things.

  • This tutorial explains about useState hook in React Typescript.

  • So in this case whenever we click on increment button initial value should be saved and increase it by 1 and then again save it somewhere.