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When to use symbols instead of strings in Ruby?
...or this:
require 'benchmark'
require 'haml'
str = Benchmark.measure do
10_000.times do
Haml::Engine.new('%input{type: "checkbox"}').render
end
end.total
sym = Benchmark.measure do
10_000.times do
Haml::Engine.new('%input{type: :checkbox}').render
end
end.total
puts "String: " + s...
How to display loading message when an iFrame is loading?
...
answered May 10 '13 at 15:17
ChristinaChristina
31.5k1717 gold badges7474 silver badges117117 bronze badges
...
Programmatically saving image to Django ImageField
...t django.core.exceptions.SuspiciousOperation: Attempted access to '/images/10.jpg' denied.
– DataGreed
Aug 13 '12 at 14:07
...
Why can't I make a vector of references?
... laike9m
13.6k1414 gold badges8686 silver badges109109 bronze badges
answered May 28 '09 at 18:25
newacctnewacct
106k2626 gold...
How to export collection to CSV in MongoDB?
...commit/586c00ef09c32c77907bd20d722049ed23065398 fixes the docs for 3.0.0-rc10 and later. It changes
Fields string `long:"fields" short:"f" description:"comma separated list of field names, e.g. -f name,age"`
to
Fields string `long:"fields" short:"f" description:"comma separated list of field nam...
OS detecting makefile
...ine 0: ifeq (,Windows_NT)' make: *** [os] Error 2
– k107
Dec 2 '16 at 7:58
1
@kristi It sounds li...
How to display PDF file in HTML?
...b-page is very easy.
<embed src="file_name.pdf" width="800px" height="2100px" />
Make sure to change the width and height for your needs.
Good luck!
share
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improve this answer
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...
Creating an empty Pandas DataFrame, then filling it?
...datetime.now().date()
index = pd.date_range(todays_date-datetime.timedelta(10), periods=10, freq='D')
columns = ['A','B', 'C']
Note: we could create an empty DataFrame (with NaNs) simply by writing:
df_ = pd.DataFrame(index=index, columns=columns)
df_ = df_.fillna(0) # with 0s rather than NaNs
...
Set transparent background using ImageMagick and commandline prompt
...
RijkRijk
1,54111 gold badge1010 silver badges99 bronze badges
6
...
How do you set your pythonpath in an already-created virtualenv?
...
arogachev
31.1k66 gold badges100100 silver badges112112 bronze badges
answered Jul 31 '13 at 7:17
tjbtjb
10...