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Can we have functions inside functions in C++?
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Modern C++ - Yes with lambdas!
In current versions of c++ (C++11, C++14, and C++17), you can have functions inside functions in the form of a lambda:
int main() {
// This declares a lambda, which can be called just like a function
auto prin...
Why does !{}[true] evaluate to true in JavaScript?
{}[true] is [true] and ![true] should be false .
10 Answers
10
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Is there any difference between “foo is None” and “foo == None”?
Is there any difference between:
12 Answers
12
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How do I format XML in Notepad++?
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Try Plugins -> XML Tools -> Pretty Print (libXML) or (XML only - with line breaks Ctrl + Alt + Shift + B)
You may need to install XML Tools using your plugin manager in order to get this option in your menu.
In my experience, libXML gives nice output but only if the ...
Restful API service
I'm looking to make a service which I can use to make calls to a web-based REST API.
11 Answers
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Regular expression to search for Gadaffi
I'm trying to search for the word Gadaffi. What's the best regular expression to search for this?
15 Answers
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How do I toggle an element's class in pure JavaScript?
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2014 answer: classList.toggle() is the standard and supported by most browsers.
Older browsers can use use classlist.js for classList.toggle():
var menu = document.querySelector('.menu') // Using a class instead, see note below.
menu.classList.toggle('hidden-phone');
As an aside, y...
StringBuilder vs String concatenation in toString() in Java
Given the 2 toString() implementations below, which one is preferred:
18 Answers
18
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Correct way to detach from a container without stopping it
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Update: As mentioned in below answers Ctrl+p, Ctrl+q will now turn interactive mode into daemon mode.
Well Ctrl+C (or Ctrl+\) should detach you from the container but it will kill the container because your main process is a bash.
A little lesso...
How to solve java.lang.NoClassDefFoundError?
I've tried both the example in Oracle's Java Tutorials . They both compile fine, but at run-time, both come up with this error:
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