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How to split long commands over multiple lines in PowerShell
...
Ah, and if you have a very long string that you want to break up, say of HTML, you can do it by putting a @ on each side of the outer " - like this:
$mystring = @"
Bob
went
to town
to buy
a fat
pig.
"@
You get exactly this:
Bob
went
to town
to buy
a fat...
Scala equivalent of Java java.lang.Class Object
...:
scala> "foo".getClass
res0: java.lang.Class[_ <: java.lang.String] = class java.lang.String
)
Back in 2009:
It would be useful if Scala were to treat the return from getClass() as a java.lang.Class[T] forSome { val T : C } where C is something like the erasure of the static type of...
mongodb/mongoose findMany - find all documents with IDs listed in array
... @chovy try converting them to ObjectIds first, instead of passing strings.
– Georgi Hristozov
Dec 2 '14 at 15:28
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Too many 'if' statements?
... the coding style to their own langauge. The question was how to avoid a string of ifs. This shows how.
– GreenAsJade
Mar 20 '14 at 12:33
6
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what is the difference between a portlet and a servlet?
... effect from normal servets (See Struts + Tiles for an example of how) the extra bit from the portlets is that the portlets are in a richer environment provided by the Portal, extra APIs are provided so that what is displayed by any portlet can be configured by individual users to their preferences,...
Delete newline in Vim
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J deletes extra leading spacing (if any), joining lines with a single space. (With some exceptions: after /[.!?]$/, two spaces may be inserted; before /^\s*)/, no spaces are inserted.)
If you don't want that behavior, gJ simply remov...
Selecting a row of pandas series/dataframe by integer index
...operator, [] is to select columns.
When the indexing operator is passed a string or integer, it attempts to find a column with that particular name and return it as a Series.
So, in the question above: df[2] searches for a column name matching the integer value 2. This column does not exist and a ...
How do I make a list of data frames?
...f data frames here are three good choices:
# base option - slower but not extra dependencies
big_data = do.call(what = rbind, args = df_list)
# data table and dplyr have nice functions for this that
# - are much faster
# - add id columns to identify the source
# - fill in missing values if some...
How to reliably open a file in the same directory as a Python script
...tively or if the script is read from standard input), path[0] is the empty string, which directs Python to search modules in the current directory first. Notice that the script directory is inserted before the entries inserted as a result of PYTHONPATH.
sys.path[0] is what you are looking for.
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How to make a class JSON serializable
...e Python primitives that have a direct JSON equivalent (e.g. dicts, lists, strings, ints, etc.). jsonpickle builds on top of these libraries and allows more complex data structures to be serialized to JSON. jsonpickle is highly configurable and extendable–allowing the user to choose the JSON backe...