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How can I detect if a selector returns null?
...my answer porting Rails' presence method.
– Marc-André Lafortune
Feb 26 '13 at 22:22
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If you wa...
Extracting specific columns from a data frame
... answered Apr 10 '12 at 9:50
Stéphane LaurentStéphane Laurent
39.9k1313 gold badges7373 silver badges143143 bronze badges
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Why is React's concept of Virtual DOM said to be more performant than dirty model checking?
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Here's a comment by React team member Sebastian Markbåge which sheds some light:
React does the diffing on the output (which is a known serializable format, DOM attributes). This means that the source data can be of any format. It can be immutable data structures and state in...
String formatting: % vs. .format vs. string literal
...ed Feb 13 '17 at 15:51
Jean-François Corbett
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answered Aug 1 '11 at 3:01
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Build an ASCII chart of the most commonly used words in a given text [closed]
...Edit: Replaced semicolons by line breaks for "readability". :P
Edit 2: Shtééf pointed out I forgot the trailing space - fixed that.
Edit 3: Removed the trailing space again ;)
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Where does this come from: -*- coding: utf-8 -*-
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actually, if I put a line like test1 = 'äöü' it will hint you to add such a headder to the file. (pycharm 2019.1)
– Cutton Eye
Sep 27 '19 at 10:33
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HTML5 Canvas vs. SVG vs. div
What is the best approach for creating elements on the fly and being able to move them around? For example, let's say I want to create a rectangle, circle and polygon and then select those objects and move them around.
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Why do you have to link the math library in C?
...ed Jun 23 '09 at 19:45
Bastien LéonardBastien Léonard
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When should I use OWIN Katana?
... answered Jan 23 '14 at 12:56
StéphaneStéphane
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image.onload event and browser cache
...p 10 '12 at 15:41
Fabrício MattéFabrício Matté
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