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How to update SQLAlchemy row entry?
... stackoverflow.com/a/2334917/125507 says this is a bad way to do it. Also what if the row doesn't exist yet?
– endolith
Aug 2 '14 at 18:13
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“Variable” variables in Javascript?
...r that). It is possible to access some global variables dynamically via window, but that doesn't work for variables local to a function. Global variables that do not become a property of window are variables defined with let and const, and classes.
There is almost always a better solution than usin...
Array.Copy vs Buffer.BlockCopy
Array.Copy and Buffer.BlockCopy both do the same thing, but BlockCopy is aimed at fast byte-level primitive array copying, whereas Copy is the general-purpose implementation. My question is - under what circumstances should you use BlockCopy ? Should you use it at any time when you are copyi...
grant remote access of MySQL database from any IP address
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TO 'user'@'%'
% is a wildcard - you can also do '%.domain.com' or '%.123.123.123' and things like that if you need.
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How to clear/remove observable bindings in Knockout.js?
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Have you tried calling knockout's clean node method on your DOM element to dispose of the in memory bound objects?
var element = $('#elementId')[0];
ko.cleanNode(element);
Then applying the knockout bindings again on just that element with your new view models would update your vi...
How to convert int[] into List in Java?
How do I convert int[] into List<Integer> in Java?
20 Answers
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How can I exclude one word with grep?
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You can do it using -v (for --invert-match) option of grep as:
grep -v "unwanted_word" file | grep XXXXXXXX
grep -v "unwanted_word" file will filter the lines that have the unwanted_word and grep XXXXXXXX will list only lines with...
Why does viewWillAppear not get called when an app comes back from the background?
...d, your UIViewController which was already visible when you left your app 'doesn't care' so to speak -- as far as it is concerned, it's never disappeared and it's still visible -- and so viewWillAppear isn't called.
I recommend against calling the viewWillAppear yourself -- it has a specific meanin...
Single vs double quotes in JSON
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JSON syntax is not Python syntax. JSON requires double quotes for its strings.
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Ruby: How to turn a hash into HTTP parameters?
...our self-answer is a good one, and I've shameless borrowed from it, but it doesn't properly escape reserved characters, and there are a few other edge cases where it breaks down.
require "addressable/uri"
uri = Addressable::URI.new
uri.query_values = {:a => "a", :b => ["c", "d", "e"]}
uri.que...