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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${...
Javascript communication between browser tabs/windows [duplicate]
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For a more modern solution check out https://stackoverflow.com/a/12514384/270274
Quote:
I'm sticking to the shared local data solution mentioned in the question using localStorage. It seems to be the best solution in terms of reliability, performance, and brows...
Why do function pointer definitions work with any number of ampersands '&' or asterisks '*'?
...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...
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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Delete local Git branches after deleting them on the remote repo
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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...
Foreign Key to multiple tables
...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...
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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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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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...