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How to change the height of a ?
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DurothDuroth
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When to use ' (or quote) in Lisp?
...(+ a 2)
3))
We'd get (+ 3 2), + is then invoked on 3 and 2 yielding 5. Our original form is now (* 5 3) yielding 15.
Explain quote Already!
Alright. As seen above, all arguments to a function are evaluated, so if you would like to pass the symbol a and not its value, you don't want to eval...
How to remove an item from an array in AngularJS scope?
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259
Your issue is not really with Angular, but with Array methods. The proper way to remove a parti...
continue processing php after sending http response
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vcampitellivcampitelli
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In Python, how do I read the exif data for an image?
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185
You can use the _getexif() protected method of a PIL Image.
import PIL.Image
img = PIL.Image.ope...
MySQL - why not index every field?
...ian Roach
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11
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Can you supply arguments to the map(&:method) syntax in Ruby?
...;block) }
end
end
Which will enable you to do not only this:
a = [1,3,5,7,9]
a.map(&:+.with(2))
# => [3, 5, 7, 9, 11]
But also a lot of other cool stuff, like passing multiple parameters:
arr = ["abc", "babc", "great", "fruit"]
arr.map(&:center.with(20, '*'))
# => ["********ab...
How to evaluate http response codes from bash/shell script?
... fix to one of our webservers that frequently fails, returning status code 500 with an error message. Once this happens, it needs to be restarted.
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Best way to replace multiple characters in a string?
...1000000 loops, best of 3: 1.47 μs per loop
b) 1000000 loops, best of 3: 1.51 μs per loop
c) 100000 loops, best of 3: 12.3 μs per loop
d) 100000 loops, best of 3: 12 μs per loop
e) 100000 loops, best of 3: 3.27 μs per loop
f) 1000000 loops, best of 3: 0.817 μs per loop
g) 100000 loops, best of ...
How to condense if/else into one line in Python? [duplicate]
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An example of Python's way of doing "ternary" expressions:
i = 5 if a > 7 else 0
translates into
if a > 7:
i = 5
else:
i = 0
This actually comes in handy when using list comprehensions, or sometimes in return statements, otherwise I'm not sure it helps that much in creat...