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JavaScript equivalent of jQuery's extend method
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This is my slightly different approach with deep copy I came up with while trying to eliminate a jQuery dependency. It is mostly designed for being small so it might have not all feature one expects. Should be fully ES5-compatible (s...
How to get the size of a string in Python?
... length of the string, you can use len():
>>> s = 'please answer my question'
>>> len(s) # number of characters in s
25
If you need the size of the string in bytes, you need sys.getsizeof():
>>> import sys
>>> sys.getsizeof(s)
58
Also, don't call your strin...
Display a float with two decimal places in Python
...is much more readable.
>>> foobar = 3.141592
>>> print(f'My number is {foobar:.2f} - look at the nice rounding!')
My number is 3.14 - look at the nice rounding!
You can see in this example we format with decimal places in similar fashion to previous string formatting methods.
NB ...
Java generics type erasure: when and what happens?
...sn't really affect developers! Of course, I can't speak for others, but in MY experience it never was a big deal. I actually take advantage of runtime type information in the design of my Java mocking API (JMockit); ironically, .NET mocking APIs seem to take less advantage of the generic type system...
How to normalize a path in PowerShell?
...ath:
Join-Path (Join-Path (pwd) fred\frog) '..\frag'
This yields (given my current location):
C:\WINDOWS\system32\fred\frog\..\frag
With an absolute base, it is safe to call the .NET API GetFullPath:
[System.IO.Path]::GetFullPath((Join-Path (Join-Path (pwd) fred\frog) '..\frag'))
Which give...
Ruby Array find_first object?
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Guess you just missed the find method in the docs:
my_array.find {|e| e.satisfies_condition? }
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What's the best way to detect a 'touch screen' device using JavaScript?
...nt, since Windows 8 came out, Modernizr has been incorrectly returning all my PC's browsers as touch-compatible.
– Anton
Feb 18 '13 at 15:12
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What is a 'Closure'?
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I've been reading my textbook on this topic for two days and couldn't really grasp what was going on. Reading your answer took 4 minutes and it makes perfect sense.
– Andrew
Jun 10 '18 at 1:57
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How to print SQL statement in codeigniter model
I have a sql statement in my model,
14 Answers
14
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Designing function f(f(n)) == -n
A question I got on my last interview:
118 Answers
118
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