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Why do function pointer definitions work with any number of ampersands '&' or asterisks '*'?
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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...
Delete local Git branches after deleting them on the remote repo
...
None of this was working for me. You can see my other answer here:
https://stackoverflow.com/a/34969726/550454
But essentially, I now have this in my ~/.gitconfig:
[alias]
prune-branches = !git remote prune origin && git branch -vv | grep ': gone]' | awk '{print $1}' | xargs -r g...
Trying to embed newline in a variable in bash [duplicate]
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Summary
Inserting \n
p="${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${...
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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Accessing private member variables from prototype-defined functions
...n use the new Symbol to create private fields.
Here's a great description: https://curiosity-driven.org/private-properties-in-javascript
Example:
var Person = (function() {
// Only Person can access nameSymbol
var nameSymbol = Symbol('name');
function Person(name) {
this[nameS...
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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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...
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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enum.values() - is an order of returned enums deterministic
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