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Advantages of std::for_each over for loop
Are there any advantages of std::for_each over for loop? To me, std::for_each only seems to hinder the readability of code. Why do then some coding standards recommend its use?
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jQuery - If element has class do this
I need an jQuery script that will see if any element has an specific class and do an action like change position.
1 Answer
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How to select between brackets (or quotes or …) in Vim?
...f pairs in between are ignored.
[...]
(http://vimdoc.sourceforge.net/htmldoc/eval.html)
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Finding the average of a list
...u are using python >= 3.4
https://docs.python.org/3/library/statistics.html
You may use it's mean method like this. Let's say you have a list of numbers of which you want to find mean:-
list = [11, 13, 12, 15, 17]
import statistics as s
s.mean(list)
It has other methods too like stdev, varia...
Using emit vs calling a signal as if it's a regular function in Qt
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emit is just syntactic sugar. If you look at the pre-processed output of function that emits a signal, you'll see emit is just gone.
The "magic" happens in the generated code for the signal emitting function, which you can lo...
How to change a PG column to NULLABLE TRUE?
How can I accomplish this using Postgres? I've tried the code below but it doesn't work:
1 Answer
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Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)
...nstead supports RAII: "Resource Acquisition Is Initialization" -- a poor name† for a really useful concept.
The idea is that an object's destructor is responsible for freeing resources. When the object has automatic storage duration, the object's destructor will be called when the block in whi...
Making 'git log' ignore changes for certain paths
How can I make git log only show commits that changed files other than the ones I specify?
3 Answers
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Determine whether JSON is a JSONObject or JSONArray
...rn more types: http://developer.android.com/reference/org/json/JSONTokener.html#nextValue()
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How to iterate over a JSONObject?
...t version are you looking? stleary.github.io/JSON-java/org/json/JSONObject.html#keySet--
– maaz
May 27 '19 at 22:11
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