The Facebook App’s 18,000 Classes

quellish:

Recently someone on reddit asked “How on earth is the Facebook app size so large ?”. The person asking the question realized that the ~100Mb compressed App Store archive wasn’t all assets - a very large portion was the application binary.

Note that you don’t have to jailbreak your device to see the contents of an app. You can just download the .ipa file to your Mac with iTunes.

And if you ever wonder about JavaScript slowing sites down, just try scrolling the linked blog in Safari.

Facebook iOS iOS App JavaScript Objective-C Web

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