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Why do we need the “event” keyword while defining events?
...rLrSs
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answered Jun 12 '10 at 13:05
Jon SkeetJon Skeet
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.rar, .zip files MIME Type
I'm developing a simple php upload script, and users can upload only ZIP and RAR files.
6 Answers
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Python assigning multiple variables to same value? list behavior
I tried to use multiple assignment as show below to initialize variables, but I got confused by the behavior, I expect to reassign the values list separately, I mean b[0] and c[0] equal 0 as before.
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One-liner to take some properties from object in ES 6
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answered Aug 28 '14 at 17:22
user663031user663031
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How to loop over files in directory and change path and add suffix to filename
...Smith
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answered Dec 27 '13 at 7:23
Gordon DavissonGordon Davisson
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Scala: Abstract types vs generics
...principle
There have always been two notions of abstraction:
parameterization and
abstract members.
In Java you also have both, but it depends on what you are abstracting over.
In Java you have abstract methods, but you can't pass a method as a parameter.
You don't have abstract fields, but ...
Create a “with” block on several context managers? [duplicate]
...hon 2.7 and 3.1 and above, you can write:
with A() as X, B() as Y, C() as Z:
do_something()
This is normally the best method to use, but if you have an unknown-length list of context managers you'll need one of the below methods.
In Python 3.3, you can enter an unknown-length list of conte...
How to clear variables in ipython?
...isbaa
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2
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Reasons for using the set.seed function
...t asked for something "random":
R> sample(LETTERS, 5)
[1] "K" "N" "R" "Z" "G"
R> sample(LETTERS, 5)
[1] "L" "P" "J" "E" "D"
These two, however, are identical because I set the seed:
R> set.seed(42); sample(LETTERS, 5)
[1] "X" "Z" "G" "T" "O"
R> set.seed(42); sample(LETTERS, 5)
[1] "X...
How do I write a for loop in bash
...ent
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answered Sep 8 '08 at 3:11
Rob RolnickRob Rolnick
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