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How to hide UINavigationBar 1px bottom line

...navigationBar?.scrollEdgeAppearance = navigationBarAppearence For iOS 12 and below: To do this, you should set a custom shadow image. But for the shadow image to be shown you also need to set a custom background image, quote from Apple's documentation: For a custom shadow image to be shown, a...
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What is the different between 'Auto' and '*' when setting width/height for a grid column?

I cannot distinguish the different between 'Auto' and '*' when setting width/height for a grid column. Please help! 1 Answe...
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How to sort my paws?

...nt experiment runs stored as ascii arrays. Rather than try to copy-paste stand-alone code examples into this question, here's a bitbucket mercurial repository with full, stand-alone code. You can clone it with hg clone https://joferkington@bitbucket.org/joferkington/paw-analysis Overview There...
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What is the difference between the bridge pattern and the strategy pattern?

I tried to read many articles on dofactory , wikipedia and many sites. I have no idea on differences between bridge pattern and the strategy pattern. ...
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How do you print in a Go test using the “testing” package?

... The structs testing.T and testing.B both have a .Log and .Logf method that sound to be what you are looking for. .Log and .Logf are similar to fmt.Print and fmt.Printf respectively. See more details here: http://golang.org/pkg/testing/#pkg-index ...
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Show Youtube video source into HTML5 video tag?

... The expiration and fact that it only works in a specific browser makes this solution pretty useless. – pjv Nov 5 '11 at 21:04 ...
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How to check if a map contains a key in Go?

...ng here } Explanation: if statements in Go can include both a condition and an initialization statement. The example above uses both: initializes two variables - val will receive either the value of "foo" from the map or a "zero value" (in this case the empty string) and ok will receive a bool ...
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Numeric for loop in Django templates

... a simple technique that works nicely for small cases with no special tags and no additional context. Sometimes this comes in handy {% for i in '0123456789'|make_list %} {{ forloop.counter }} {% endfor %} share ...
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Ruby: How to get the first character of a string

...= "Smith" first_name = "John" Then you can get the initials very cleanly and readably: puts first_name.initial # prints J puts last_name.initial # prints S The other method mentioned here doesn't work on Ruby 1.8 (not that you should be using 1.8 anymore anyway!--but when this answer was p...
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Swift variable decorations with “?” (question mark) and “!” (exclamation mark)

I understand that in Swift all variables must be set with a value, and that by using optionals we can set a variable to be set to nil initially. ...