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What is the difference between currying and partial application?
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Currying is converting a single function of n arguments into n functions with a single argument ...
Which is fastest? SELECT SQL_CALC_FOUND_ROWS FROM `table`, or SELECT COUNT(*)
...to say that SQL_CALC_FOUND_ROWS is almost always slower - sometimes up to 10x slower - than running two queries.
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Hashing a dictionary?
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edited Jul 26 '19 at 10:04
mit
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answered May ...
Received fatal alert: handshake_failure through SSLHandshakeException
...s : jks
keyStore provider is :
init keystore
init keymanager of type SunX509
trustStore is: C:\Java\jdk1.6.0_21\jre\lib\security\cacerts
trustStore type is : jks
trustStore provider is :
If the wrong truststore is used, then you'll need to re-import the server's certificate to the right one, or ...
Regular expression to match any character being repeated more than 10 times
...e regular expression to match the same character being repeated more than 10 or so times. So for example, if I have a document littered with horizontal lines:
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How to use auto-layout to move other views when a view is hidden?
... I tried to set UIView leading constraint to Superview (Cell content) for 10px and UILabels leading Constraints for 10 px to the next view (UIView). Later in my code
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“Default Activity Not Found” on Android Studio upgrade
I upgraded IntelliJ Idea from 12.0.4 to 12.10.
73 Answers
73
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Aggregate / summarize multiple variables per group (e.g. sum, mean)
...t, year + month ~ variable, sum)
# year month x1 x2
1 2000 1 -80.83405 -224.9540159
2 2000 2 -223.76331 -288.2418017
3 2000 3 -188.83930 -481.5601913
4 2000 4 -197.47797 -473.7137420
5 2000 5 -259.07928 -372.4563522
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Getting only 1 decimal place [duplicate]
...laces?
round(number,1)
or even round strictly down?
math.floor(number*10)/10
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Sorting object property by values
...hat array for your purposes. Here's a solution:
var maxSpeed = {
car: 300,
bike: 60,
motorbike: 200,
airplane: 1000,
helicopter: 400,
rocket: 8 * 60 * 60
};
var sortable = [];
for (var vehicle in maxSpeed) {
sortable.push([vehicle, maxSpeed[vehicle]]);
}
sortable.sor...