Tonye Onuoha

💡 𝗧𝗶𝗽 𝗼𝗳 𝘁𝗵𝗲 𝗗𝗮𝘆 — 𝗗𝗷𝗮𝗻𝗴𝗼

𝗗𝗶𝗱 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄? Django’s "annotate()" lets you add 𝗰𝗮𝗹𝗰𝘂𝗹𝗮𝘁𝗲𝗱 𝗳𝗶𝗲𝗹𝗱𝘀 𝗱𝗶𝗿𝗲𝗰𝘁𝗹𝘆 𝗶𝗻 𝘆𝗼𝘂𝗿 𝗾𝘂𝗲𝗿𝘆𝘀𝗲𝘁𝘀.

Instead of processing data in Python after fetching it, you can compute values at the...

💡 𝗧𝗶𝗽 𝗼𝗳 𝘁𝗵𝗲 𝗗𝗮𝘆 — 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲

𝗗𝗶𝗱 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄? In React Native, "ScrollView" 𝗿𝗲𝗻𝗱𝗲𝗿𝘀 𝙖𝙡𝙡 𝗶𝘁𝘀 𝗰𝗵𝗶𝗹𝗱𝗿𝗲𝗻 𝗮𝘁 𝗼𝗻𝗰𝗲, while "FlatList" renders items 𝗹𝗮𝘇𝗶𝗹𝘆 as they appear on screen.

🔧 Why this matters:

- "ScrollView" is...

💡 𝗧𝗶𝗽 𝗼𝗳 𝘁𝗵𝗲 𝗗𝗮𝘆 — 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁

𝗗𝗶𝗱 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄?

Optional chaining (?.) can save you from runtime errors when accessing deeply nested properties.

Instead of writing multiple checks like:

"user && user.profile && user.profile.name"

You can simply write:

...

💡 𝗧𝗶𝗽 𝗼𝗳 𝘁𝗵𝗲 𝗗𝗮𝘆 — 𝗥𝗲𝗮𝗰𝘁

𝗗𝗶𝗱 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄? In React, "useEffect" 𝗰𝗹𝗲𝗮𝗻𝘂𝗽 𝗳𝘂𝗻𝗰𝘁𝗶𝗼𝗻𝘀 𝗿𝘂𝗻 𝗯𝗲𝗳𝗼𝗿𝗲 𝘁𝗵𝗲 𝗻𝗲𝘅𝘁 𝗲𝗳𝗳𝗲𝗰𝘁 𝗮𝗻𝗱 𝗼𝗻 𝘂𝗻𝗺𝗼𝘂𝗻𝘁.

This means React will 𝗰𝗹𝗲𝗮𝗻 𝘂𝗽 𝘁𝗵𝗲 𝗽𝗿𝗲𝘃𝗶𝗼𝘂𝘀 𝗲𝗳𝗳𝗲𝗰𝘁 before...