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Which is the first integer that an IEEE 754 float is incapable of representing exactly?
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2 Answers
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What does the star operator mean, in a function call?
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932
The single star * unpacks the sequence/collection into positional arguments, so you can do this:...
How to run cron job every 2 hours
...n I write a Crontab that will run my /home/username/test.sh script every 2 hours?
5 Answers
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MySQL foreign key constraints, cascade delete
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392
If your cascading deletes nuke a product because it was a member of a category that was killed, ...
Less aggressive compilation with CSS3 calc
...ession inside calc by default since v3.00.
Original answer (Less v1.x...2.x):
Do this:
body { width: calc(~"100% - 250px - 1.5em"); }
In Less 1.4.0 we will have a strictMaths option which requires all Less calculations to be within brackets, so the calc will work "out-of-the-box". This is an ...
How to flatten only some dimensions of a numpy array
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129
Take a look at numpy.reshape .
>>> arr = numpy.zeros((50,100,25))
>>> arr.sh...
How to avoid warning when introducing NAs by coercion
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142
Use suppressWarnings():
suppressWarnings(as.numeric(c("1", "2", "X")))
[1] 1 2 NA
This supp...
How do I select a merge strategy for a git rebase?
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236
You can use this with Git v1.7.3 or later versions.
git rebase --strategy-option theirs ${bra...
Splitting String with delimiter
I am currently trying to split a string 1128-2 so that I can have two separate values. For example, value1: 1128 and value2: 2, so that I can then use each value separately. I have tried split() but with no success. Is there a specific way Grails handles this, or a better way of doing it?
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How to create an object for a Django model with a many to many field?
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248
You cannot create m2m relations from unsaved objects. If you have the pks, try this:
sample_o...