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How to add leading zeros?
...advantage of sprintf is that you can embed formatted numbers inside longer bits of text.
sprintf(
"Animal ID %06d was a %s.",
anim,
sample(c("lion", "tiger"), length(anim), replace = TRUE)
)
## [1] "Animal ID 025499 was a tiger." "Animal ID 025500 was a tiger."
## [3] "Animal ID 025501 was ...
Entity Framework - Invalid Column Name '*_ID"
...nd un-attached records.
– Jacob
Feb 10 '18 at 2:02
@LUKE Your comment saved me. I love you so much :)
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How to make button look like a link?
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border-bottom is a bit of a hack for making it looked underlined. This answer is otherwise a good start, but the second answer here is really more thorough and has the right solution for underlining.
– michael
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how do you filter pandas dataframes by multiple columns
...one from @redreamality):
import pandas as pd
import numpy as np
length = 100_000
df = pd.DataFrame()
df['Year'] = np.random.randint(1950, 2019, size=length)
df['Gender'] = np.random.choice(['Male', 'Female'], length)
%timeit df.query('Gender=="Male" & Year=="2014" ')
%timeit df[(df['Gender']=...
Why is subtracting these two times (in 1927) giving a strange result?
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I'm sorry to say, but the time discontinuity has moved a bit in
JDK 6 two years ago, and in JDK 7 just recently in update 25.
Lesson to learn: avoid non-UTC times at all costs, except maybe for display.
s...
SQL UPDATE SET one column to be equal to a value in a related table referenced by a different column
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10 Answers
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How to re-sign the ipa file?
...h the new certificate (--resource-rules has been deprecated OS X Yosemite (10.10), it can safely be removed)
/usr/bin/codesign -f -s "$CERTIFICATE" Payload/*.app
# zip it back up
zip -qr resigned.ipa Payload
Your new signed app is called resigned.ipa
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How to convert ‘false’ to 0 and ‘true’ to 1 in Python
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If B is a Boolean array, write
B = B*1
(A bit code golfy.)
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Is there any way to post events to Google Analytics via server-side API? [closed]
...aybe?
– Esqarrouth
Feb 25 '19 at 17:10
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Difference between Repository and Service Layer?
... StepUp
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answered Feb 19 '11 at 7:16
LukLedLukLed
29.6k1717 gold b...