Abdelfattah RagabDec 23

Angular Observables and Promises: A Practical Guide to Asynchronous Programming by Abdelfattah Ragab

Available on https://shop.tredition.com and https://www.amazon.com

#angular #rxjs #observables #promises #resolve #reject #asyncawait #subscribe #hotobservables #coldobservables #behaviorsubject #subject #asyncpipe #rxjsoperators #handson #forkjoin #combinelatest #lastvaluefrom #merge #map #filter #take #debouncetime #exhaustmap #switchmap #catcherror #concatmap #mergemap #tap

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Abdelfattah RagabNov 9, 2024

Angular Observables and Promises: A Practical Guide to Asynchronous Programming

#Angular #Observables #Promises #Asynchronous #SwitchMap #forkJoin #exhaustMap

Gallant GakiiOct 23, 2024
Project #6: Fetch and display weather based on the user’s location
#SwitchMap Operator
π˜¨π˜¦π˜΅π˜“π˜°π˜€π˜’π˜΅π˜ͺ𝘰𝘯() method fetches the user's current location. It returns an π˜–π˜£π˜΄π˜¦π˜³π˜·π˜’π˜£π˜­π˜¦. Upon completion, the position coords are updated. Use the 𝘱π˜ͺ𝘱𝘦 operator to chain operations on the Observable returned by π˜¨π˜¦π˜΅π˜“π˜°π˜€π˜’π˜΅π˜ͺ𝘰𝘯(). Use the 𝘴𝘸π˜ͺπ˜΅π˜€π˜©π˜”π˜’π˜± operator to transform the void emission from π˜¨π˜¦π˜΅π˜“π˜°π˜€π˜’π˜΅π˜ͺ𝘰𝘯() into an Observable that fetches weather.
Find links to my work here:
π—šπ—Άπ˜π—›π˜‚π—―: https://lnkd.in/dBmvynw8
#Angular
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Deborah KurataJan 18, 2023

Higher-order mapping with RxJS:
- Maps a value (such as an id) to an Observable
- Automatically subscribes and unsubscribes from the inner Observable
- Flattens the result

More information here:

https://youtu.be/Ezos3zSgldU

#angular #rxjs #switchmap

RxJS Higher-order Mapping

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