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Taking screenshot on Emulator from Android Studio
... on those OS versions. It works okay for Android prior to 4.3. That bug is https://code.google.com/p/android/issues/detail?id=62284
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Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
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There's a dynamic programming solution. We start off knowing 0 keys can make us 0 A's. Then we iterate through for i up to n, doing two things: pressing A once and pressing select all + copy followed by paste j times (actually j-i-1 below; not...
Mark error in form using Bootstrap
...feedback to message wrapper
Example:
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">
<div class="form-group has...
Trying to embed newline in a variable in bash [duplicate]
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Summary
Inserting \n
p="${var1}\n${var2}"
echo -e "${p}"
Inserting a new line in the source code
p="${var1}
${var2}"
echo "${p}"
Using $'\n' (only bash and zsh)
p="${var1}"$'\n'"${var2}"
echo "${p}"
Details
1. Inserting \n
p="${var1}\n${...
Parsing a JSON string in Ruby
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I suggest Oj as it is waaaaaay faster than the standard JSON library.
https://github.com/ohler55/oj
(see performance comparisons here)
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enum.values() - is an order of returned enums deterministic
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Pointer expressions: *ptr++, *++ptr and ++*ptr
Recently I have come across this problem which I am unable to understand by myself.
10 Answers
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What is the difference between Raising Exceptions vs Throwing Exceptions in Ruby?
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https://coderwall.com/p/lhkkug/don-t-confuse-ruby-s-throw-statement-with-raise offers an excellent explanation that I doubt I can improve on. To summarize, nicking some code samples from the blog post as I go:
raise/rescue ...
CSS background image to fit width, height should auto-scale in proportion
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Based on tips from https://developer.mozilla.org/en-US/docs/CSS/background-size I end up with the following recipe that worked for me
body {
overflow-y: hidden ! important;
overflow-x: hidden ! important;
background-col...
What does f+++++++++ mean in rsync logs?
... I wrote during researching more about rsync. You can look at the script (https://github.com/jmmitchell/movestough) for examples of post-processing the captured output to isolate new files, duplicate files (same name, same contents), file collisions (same name, different contents), as well as the c...