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How to store custom objects in NSUserDefaults
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I create a library RMMapper (https://github.com/roomorama/RMMapper) to help save custom object into NSUserDefaults easier and more convenient, because implementing encodeWithCoder and initWithCoder is super boring!
To mark a class as archivable, just us...
Improve INSERT-per-second performance of SQLite
... at a time in an SQLite database? -- I've posted my first Git repository:
https://github.com/rdpoor/CreateOrUpdate
which bulk loads an array of ActiveRecords into MySQL, SQLite or PostgreSQL databases. It includes an option to ignore existing records, overwrite them or raise an error. My rudimenta...
How to increment a datetime by one day?
...3:00. Hence the country skipped 2011-12-30 in its
local time.
See https://stackoverflow.com/q/52084423/562769
A common wrong result here is 2011-12-30T23:59:00-10:00. This date never
happened in Samoa.
"""
tz = pytz.timezone('Pacific/Apia')
today_utc = datetime.datetime...
How to check if a number is between two values?
...ever might be useful for someone like me.
lodash has _.inRange() function https://lodash.com/docs/4.17.4#inRange
Example:
_.inRange(3, 2, 4);
// => true
Please note that this method utilizes the Lodash utility library, and requires access to an installed version of Lodash.
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How do I keep track of pip-installed packages in an Anaconda (Conda) environment?
...build PACKAGE
Also when you have built them once, you can upload them to https://binstar.org/ and just install from there.
Then you'll have everything managed using conda.
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Listening for variable changes in JavaScript
...ead but now this effect is possible using accessors (getters and setters): https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_Objects#Defining_getters_and_setters
You can define an object like this, in which aInternal represents the field a:
x = {
aInternal: 10,
aListen...
Programming with white text on black background?
...xt on white background suits more people".
My answer refers to this one: https://graphicdesign.stackexchange.com/questions/15142/which-is-easier-on-the-eyes-dark-on-light-or-light-on-dark
As a person with astigmatism, I find white background with dark text is easier to read as the reference sugge...
How do I edit /etc/sudoers from a script?
...ng entries in /etc/sudoers.d, then you can use this answer by @dragon788:
https://superuser.com/a/1027257/26022
Basically you use visudo to verify the file before you copy it into /etc/sudoers.d, so you can be sure you're not breaking sudo for anyone.
visudo -c -q -f filename
This checks it and...
How to create a tag with Javascript?
...t;').text("body{background:red}").appendTo(document.head)
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
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What's the Best Way to Shuffle an NSMutableArray?
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If you import GameplayKit, there is a shuffled API:
https://developer.apple.com/reference/foundation/nsarray/1640855-shuffled
let shuffledArray = array.shuffled()
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