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How to exit a function in bash
...here are definitely solutions possible, but I just wanted to call out that extra care needs to be taken with set -e and returning non-zero values, as that caught me by surprise in the past.
– Yevgeniy Brikman
Jul 12 '19 at 21:19
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How to check if a file is a valid image file?
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A lot of times the first couple chars will be a magic number for various file formats. You could check for this in addition to your exception checking above.
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Advantages of Antlr (versus say, lex/yacc/bison) [closed]
... debugging easy (e.g. you can see the generated AST's right in the GUI, no extra tools required)
Generated code is actually human-readable (it's one of the goals of ANTLR) and the fact that it generates LL parsers surely helps in this regard.
definition of terminals is context-free as well (as oppo...
How to track untracked content?
...d -r MOD; do
# extract submodule path (split line at whitespace and take string with index 3)
ARRIN=(${MOD})
MODPATH=${ARRIN[3]}
# grep module url from .git file in submodule path
MODURL=`grep "url = " $MODPATH/.git/config`
MODURL=${MODURL##*=}
# echo path and url for information
e...
Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
...plicit val sc = new SparkContext(conf)
val range = ('a' to 'z').map(_.toString)
val rdd = sc.parallelize(range)
println(range.reduce(_ + _))
println(rdd.reduce(_ + _))
println(rdd.fold("")(_ + _))
}
Print out:
abcdefghijklmnopqrstuvwxyz
abcghituvjklmwxyzqrsdefnop
defghinopjklmqrst...
Git branch diverged after rebase
...h - will that not create a new commit for that? Will that not result in an extra commit once this feature branch if merge to master later on?
– Ross
May 15 '18 at 22:54
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Is there a difference between PhoneGap and Cordova commands?
... tools and thats why they differ in command But they do same thing.
EDIT: Extra info added as its about command difference and what phonegap can do while apache cordova can't or viceversa
First of command line option of PhoneGap
http://docs.phonegap.com/en/edge/guide_cli_index.md.html
Apache Cor...
How to force IntelliJ IDEA to reload dependencies from build.sbt after they changed?
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[warn]
[warn] Note: Some unresolved dependencies have extra attributes. Check that these dependencies exist with the requested attributes.
[warn] org.jetbrains:sbt-structure:latest.integration (sbtVersion=0.13, scalaVersion=2.10)
I have opened a ticket at JetBrains.
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Overloading Macro on Number of Arguments
... expand the _COUNT_ARGS(__VA_ARGS__) part, which otherwise is treated as a string.
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Get time difference between two dates in seconds
...act them and divide by 1000 (since it's originally in milliseconds). As an extra, when you're calling the getDate() method, you're in fact getting the day of the month as an integer between 1 and 31 (not zero based) as opposed to the epoch time you'd get from calling the getTime() method, representi...