Autolayout swift 4 programmatically

I started learning swift and kept going for 100 days. Each day, I tried to autolayout swift 4 programmatically something from what I learned. Most projects took a few days to complete.

Below is my progression from day one to a hundred in the form of completed projects. Tools: Sketch, Xcode 7, Swift 2. M9 1a8 8 0 1 0 0 16A8 8 0 0 0 9 1zm. Join Stack Overflow to learn, share knowledge, and build your career. M9 1a8 8 0 1 0 0 16A8 8 0 0 0 9 1zM8 15. Yesterday I loss a job because of I don’t know the correct answer of this question.

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Most of below answers are not correct! This works for both iOS 6. If you want support for iOS 6. I recommend to use CGFLOAT_MAX macro instead of MAXFLOAT.