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Importing modules from parent folder
...ked out. However, to make it more explicit, the procedure is to import sys and then sys.path.append("..\<parent_folder>")
– BCJuan
Nov 20 '19 at 16:12
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What's the point of NSAssert, actually?
...Is that the reason why to use NSAssert? Or what else is the benefit of it? And is it right to put an NSAssert just above any assumption I make in code, like a function that should never receive a -1 as param but may a -0.9 or -1.1?
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Vim: apply settings on files in directory
... newline ?"), or call function from them (I don't limit myself to coding standards, I also set the makefile to use depending on the current directory)
DRY: with modelines, a setting needs to be repeated in every file, if there are too many things to set or tunings to change, it will quickly become d...
Standard Android Button with a different color
I'd like to change the color of a standard Android button slightly in order to better match a client's branding.
20 Answers...
Insert picture/table in R Markdown [closed]
So I want to insert a table AND a picture into R Markdown. In regular word document I can just easily insert a table (5 rows by 2 columns), and for the picture just copy and paste.
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JavaScript: How to pass object by value?
... properties added to o will be available from obj if they're not shadowed, and all objects that have o in the prototype chain will see the same updates to o.
Also, if obj has a property that references another object, like an Array, you'll need to be sure to shadow that object before adding members...
How to define a two-dimensional array?
...sion that could arise with the indexing, if you use "x" for both the inner and outer lists, and want a non-square Matrix.
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Why does comparing strings using either '==' or 'is' sometimes produce a different result?
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@AlexanderSupertramp, because of string interning.
– Chris Rico
Feb 1 '15 at 9:34
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Checking if a key exists in a JavaScript object?
...r, if you want to particularly test for properties of the object instance (and not inherited properties), use hasOwnProperty:
obj.hasOwnProperty("key") // true
For performance comparison between the methods that are in, hasOwnProperty and key is undefined, see this benchmark
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Javascript call() & apply() vs bind()?
I already know that apply and call are similar functions which set this (context of a function).
22 Answers
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