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Best way to find the intersection of multiple sets?
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edited Dec 11 '19 at 13:08
Jean-François Fabre♦
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Error 908: Permission Receive SMS - #5 by Taifun - MIT App Inventor Help - MIT App Inventor Community
...imary: #222222;
--secondary: #ffffff;
--tertiary: #0088cc;
--quaternary: #e45735;
--highlight: #ffff4d;
--success: #009900;
}
}
/* then deal with dark scheme */
@media (prefers-color-scheme: dark) {
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Why use Ruby's attr_accessor, attr_reader and attr_writer?
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750
You may use the different accessors to communicate your intent to someone reading your code, and...
Geometric Mean: is there a built-in?
...ositive values.
gm_mean = function(x, na.rm=TRUE){
exp(sum(log(x[x > 0]), na.rm=na.rm) / length(x))
}
Thanks to @ben-bolker for noting the na.rm pass-through and @Gregor for making sure it works correctly.
I think some of the comments are related to a false-equivalency of NA values in the d...
?: operator (the 'Elvis operator') in PHP
...will leave foo unchanged.
Some more examples:
<?php
var_dump(5 ?: 0); // 5
var_dump(false ?: 0); // 0
var_dump(null ?: 'foo'); // 'foo'
var_dump(true ?: 123); // true
var_dump('rock' ?: 'roll'); // 'rock'
?>
By the way, it's called the Elvis operator.
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Generate random string/characters in JavaScript
...aracter string composed of characters picked randomly from the set [a-zA-Z0-9] .
77 Answers
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setTimeout / clearTimeout problems
I try to make a page to go to the startpage after eg. 10sec of inactivity (user not clicking anywhere). I use jQuery for the rest but the set/clear in my test function are pure javascript.
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The maximum value for an int type in Go
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10 Answers
10
Active
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What's the simplest way to subtract a month from a date in Python?
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20 Answers
20
Active
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How Pony (ORM) does its tricks?
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210
Pony ORM author is here.
Pony translates Python generator into SQL query in three steps:
Deco...