React Keys | ReactJS Tutorial | Part - 19 | Tamil | 2020

#VJTECHNOWIZARD #reactjstutorialintamil #reactjskeys #reactkeysandlists In this video we will see about React Key concept . A Key is a special string attribute you need to include when creating lists of elements in React. Keys are used in React to identify which items in the list are changed, updated or deleted. It also helps to determine which components in a collection needs to be re-rendered instead of re-rendering the entire set of components every time. ReactJS List : https://youtu.be/5HJJQ_p1hfk ReactJS Fragments : https://youtu.be/t-7GpLyKNOM ReactJS Forms : https://youtu.be/tOk9REhsdMU #vjtechnowizard #tamilcodingchannel #tamilprogrammingchannel #bestcodingchannelintamil #bestprogrammingchannelintamil #learncodingintamil #learnprogrammingintamil vj techno wizard tamil coding channel tamil programming channel best coding channel in tamil best programming channel in tamil learn coding in tamil learn programming in tamil