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Understanding the Gemfile.lock file
After running the bundle install command, 'Gemfile.lock ' is created in the working directory. What do the directives inside that file mean?
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Get Slightly Lighter and Darker Color from UIColor
I was looking to be able to turn any UIColor into a gradient. The way I am intending to do this is by using Core Graphics to draw a gradient. What I am trying to do is to get a color, lets say:
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How do Trigonometric functions work?
So in high school math, and probably college, we are taught how to use trig functions, what they do, and what kinds of problems they solve. But they have always been presented to me as a black box. If you need the Sine or Cosine of something, you hit the sin or cos button on your calculator and you'...
What does |= (ior) do in Python?
Google won't let me search |= so I'm having trouble finding relevant documentation. Anybody know?
8 Answers
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String vs. StringBuilder
I understand the difference between String and StringBuilder ( StringBuilder being mutable) but is there a large performance difference between the two?
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Dismissing a Presented View Controller
I have a theoretic question. Now İ'm reading Apple's ViewController guide.
13 Answers
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How to force a line break in a long word in a DIV?
Okay, this is really confusing me. I have some content inside of a div like so:
16 Answers
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Strings as Primary Keys in SQL Database [closed]
I am not very familiar with databases and the theories behind how they work. Is it any slower from a performance standpoint (inserting/updating/querying) to use Strings for Primary Keys than integers?
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How do I represent a time only value in .NET?
Is there a way one can represent a time only value in .NET without the date? For example, indicating the opening time of a shop?
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How/when to use ng-click to call a route?
Suppose you are using routes:
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