How long do you think Swift will replace all Objective C legacy API

Programming Languages Swift
wongacid OP
Created Jun ’20
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It so exciting to welcome WWDC20 within several days ahead that will unwrap many new innovation that hopefully will makes apple developer ecosystem stronger than ever. Especially for a new comer developer like me.

Yesterday me and my friend discussing about how swift technology stack change developer live to develop a great apps. He said to me that objective-c still have a big portion for example in to support legacy app in the big company such as FAANG. Although swift already occur since 2014, i wonder when it will completely replacing objective-c legacy API? Is it still worth enough to learn objective-c framework nowdays?
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Claude31 OP
Jun ’20
Maybe it will "never" replace. Because changing is always a risk of new bugs, so why change something that works well ?

However, if you don't need to access low level API, I find it enough to master Swift. IMHO, it is better to be very strong on one language (Swift) than average on 2… Especially for a beginner.
And mastering perfectly Swift is a long, long, long work, with a permanently moving target.

Note: being able to read objC does help ; but no need to be fluent in objc.

Good luck.
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How long do you think Swift will replace all Objective C legacy API
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