One of the questions we always get asked at meet-ups and conversations with other engineers is, “what’s your stack?” We thought it would be fun to give a sense of all the systems that power Instagram, at a high-level; you can look forward to more in-depth descriptions of some of these systems in…
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Underscore.m is a small utility library to facilitate working with common data structures in Objective-C. It tries to encourage chaining by eschewing the square bracket]]]]]].
It is inspired by the awesome underscore.js.