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sudheer danthalasudheer danthala 

pleases tell challenges in lwc&aura

VinayVinay (Salesforce Developers) 
Hi Sudheer,

There is no direct answer for challenges in both, however you can review below references that can tell you differences between lwc and aura.

https://cyntexa.com/blog/aura-components-vs-lightning-web-components/
https://medium.com/salesforce-architects/lwc-vs-aura-what-architects-need-to-know-695af25e4535
https://trailhead.salesforce.com/content/learn/modules/lightning-web-components-for-aura-developers/understand-how-lightning-web-components-work-with-aura-components

Please mark as Best Answer if above information was helpful.

Thanks,
sudheer danthalasudheer danthala
What is differance between @wire and connectedcallback
Hitesh chaudhariHitesh chaudhari
ConnectedCallBack() : lifecycle hook fires when a component is inserted into the DOM
@wire : this hook is used to call apex function