Tonye Onuoha

💡 𝗧𝗶𝗽 𝗼𝗳 𝘁𝗵𝗲 𝗗𝗮𝘆 — 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲

𝗗𝗶𝗱 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄? Using "useFocusEffect" from "@react-navigation/native" is often better than "useEffect" when you're dealing with screen-specific logic in React Navigation.

"useEffect runs" when the component mounts...

💡 𝗧𝗶𝗽 𝗼𝗳 𝘁𝗵𝗲 𝗗𝗮𝘆 — 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 (𝗘𝘅𝗽𝗼)

𝗗𝗶𝗱 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄?

You can dramatically speed up your mobile builds by enabling Expo’s EAS Build cache.

With the build cache turned on, Expo reuses previously compiled native code, meaning your subsequent builds...

💡 𝗧𝗶𝗽 𝗼𝗳 𝘁𝗵𝗲 𝗗𝗮𝘆 — 𝗗𝗷𝗮𝗻𝗴𝗼 ⚡

Slow Django app? It’s often your queries, not Django.

Use "select_related()" for foreign keys and "prefetch_related()" for M2M to avoid N+1 queries and massively boost performance 🚀

Small ORM tweaks = faster APIs + happier users 😌

#Backend #WebDev #Performance

💡 𝗧𝗶𝗽 𝗼𝗳 𝘁𝗵𝗲 𝗗𝗮𝘆 — 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 / 𝗘𝘅𝗽𝗼 ⚛️📱

𝗨𝘀𝗲 "useCallback" 𝗳𝗼𝗿 𝘀𝘁𝗮𝗯𝗹𝗲 𝗳𝘂𝗻𝗰𝘁𝗶𝗼𝗻𝘀 𝗶𝗻 𝗳𝗿𝗲𝗾𝘂𝗲𝗻𝘁𝗹𝘆 𝗿𝗲-𝗿𝗲𝗻𝗱𝗲𝗿𝗲𝗱 𝗰𝗼𝗺𝗽𝗼𝗻𝗲𝗻𝘁𝘀.

In React Native, unnecessary re-renders can hurt performance — especially in...