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Python: "or" in short form


By : Smellyfish
Date : October 18 2020, 06:10 AM
I wish this help you Is there a possibility to write this in a shorter way? , As a general case, you can use the in keyword,
code :
elif line.startswith('\tVLRLIST=') and line.rstrip()[9:-1] in ('27', '28', '29'):
elif line.startswith('\tVLRLIST=') and (int(line.rstrip()[9:-1]) in range(27, 30):


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Python-equivalent of short-form "if" in C++


By : Mego
Date : March 29 2020, 07:55 AM
I wish did fix the issue.
code :
a = '123' if b else '456'

R: transforming "short form" data to "long form" data without for loops?


By : user3029261
Date : March 29 2020, 07:55 AM
Hope this helps Suppose I have an R dataframe like this: , Use the melt function in package reshape2:
code :
library(reshape2)
dat.m <- melt(dat, id.vars = c("Subject", "Session"))
#change "variable" to "Property"
names(dat.m)[3] <- "Property"
#Drop "Property." from the column values
dat.m$Property <- gsub("Property\\.", "", dat.m$Property)

Java: Collapsing short "if/else" with simple "return"s and trailing "throw" into a single


By : Pankaj Roy
Date : March 29 2020, 07:55 AM
Hope that helps If you used exception outside the conditional operator, then type inference would do the right thing. Here, instead of specifying the type arguments, you can just downcast the result into Value, either locally for exception():
code :
return cond1 ? val1 :
       cond2 ? val2 :
       cond3 ? val3 :
       (Value)exception(new AnyException());
return (Value) (
       cond1 ? val1 :
       cond2 ? val2 :
       cond3 ? val3 :
       exception(new AnyException()));

Cast from "int" to "unsigned short" after applying bitwise operator "~"


By : Hannibal
Date : March 29 2020, 07:55 AM
will help you The operands of the arithmetic and bitwise operators always undergo the standard promotions before the value is computed. Anything shorter than an int is promoted to either int or unsigned int, depending on the platform (i.e. depending on whether int can represent all values of the type that's being promoted).
On your platform, uint16_t is standard-promoted to int, since your int can represent all values of a uint16_t. Then the bitwise negation is applied to that int value, which is the cause of the problem.
code :
 uint16_t var2 = (uint16_t) ~((unsigned int) var1);

How to use the "colon slash" revision short form and still refer to a commit's parent?


By : Sky Wind
Date : March 29 2020, 07:55 AM
it should still fix some issue Following the git rev-parse command, you can combine two of those in order to get the parent of a commit whose message match the regexp.
In a git bash, type:
code :
git rev-parse $(git rev-parse :/<text>)^
git rev-parse HEAD^{/<text>}^
git rev-parse "@^{/<text>}^"
# or, more complex, as ^ is the windows escape sign:
git rev-parse ^@^^{/<text>}^^
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