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Why is '+' not understood by Python sets?
...ntation for the + operator.
You can use | for set union and & for set intersection.
Sets do implement - as set difference. You can also use ^ for symmetric set difference (i.e., it will return a new set with only the objects that appear in one set but do not appear in both sets).
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How to use a custom comparison function in Python 3?
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Use the key argument (and follow the recipe on how to convert your old cmp function to a key function).
functools has a function cmp_to_key mentioned at docs.python.org/3.6/library/functools.html#functools.cmp_to_key
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Which characters are valid in CSS class names/selectors?
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i have an example: i convert a syntax highlighting system’s output to CSS. it has class names like “ISO C++:Types (_t/_type)”. if i only replace whitespace i have valid class names.
– flying sheep
Jul ...
How do I get the number of days between two dates in JavaScript?
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Steps
Set start date
Set end date
Calculate difference
Convert milliseconds to days
Native JS
const startDate = '2020-01-01';
const endDate = '2020-03-15';
const diffInMs = new Date(endDate) - new Date(startDate)
const diffInDays = diffInMs / (1000 * 60 * 60 * 24);
Comm...
Is 161803398 A 'Special' Number? Inside of Math.Random()
...y 15 '14 at 20:51
Matt Johnson-PintMatt Johnson-Pint
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Ruby: extend self
...he code is easier to test, mock, and stub, and it’s still dead simple to convert into a proper class should the need arise.
(( copyright ought ten chris wanstrath ))
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How do I scroll the UIScrollView when the keyboard appears?
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It's good to convert activeField.frame to relative frame as activeField doesn't have to be an immediate child to self.view. Updated code should look something like: CGRect aRect = self.view.frame; aRect.size.height -= kbSize.height; CGRe...
Regular expression search replace in Sublime Text 2
... anemic. Specifically, I want to do a replace on groups, so something like converting this text:
6 Answers
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Why does AngularJS include an empty option in select?
...ption instead of value. It will parse it to an number and you dont have to convert your values like you do now :)
– Max
May 29 '18 at 8:52
Difference between GeoJSON and TopoJSON
...aScript, for example, you’d typically use the TopoJSON client library to convert TopoJSON to GeoJSON for use with standard tools such as d3.geoPath. (In Python, you can use topojson.py.) Also, TopoJSON’s integer format requires quantizing coordinates, which means that it can introduce rounding e...