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How can you use an object's property in a double-quoted string?
...-quoted string, you have to enclose that subexpression in $():
$foo = 1,2,3
"$foo[1]" # yields "1 2 3[1]"
"$($foo[1])" # yields "2"
$bar = "abc"
"$bar.Length" # yields "abc.Length"
"$($bar.Length)" # yields "3"
PowerShell only expands variables in those cases, nothing more. To force eval...
what is the difference between sendStickyBroadcast and sendBroadcast in Android
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ASP.NET MVC 3: Override “name” attribute with TextBoxFor
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Rob, actually there is a much simpler way. Instead of name, use Name:
@Html.TextBoxFor(x =>...
How do I update a Python package?
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edited Mar 22 '17 at 22:38
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get list of pandas dataframe columns based on data type
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If you want a list of columns of a certain type, you can use groupby:
>>> df = pd.Da...
Ruby: Change negative number to positive number?
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Warning message: In `…` : invalid factor level, NA generated
... "Type" to be a character.
> fixed <- data.frame("Type" = character(3), "Amount" = numeric(3))
> str(fixed)
'data.frame': 3 obs. of 2 variables:
$ Type : Factor w/ 1 level "": NA 1 1
$ Amount: chr "100" "0" "0"
>
> fixed <- data.frame("Type" = character(3), "Amount" = nume...
What is the proper way to format a multi-line dict in Python?
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I use #3. Same for long lists, tuples, etc. It doesn't require adding any extra spaces beyond the indentations. As always, be consistent.
mydict = {
"key1": 1,
"key2": 2,
"key3": 3,
}
mylist = [
(1, 'hello'),
(...
Python/postgres/psycopg2: getting ID of row just inserted
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What is the correct way to get a subarray in Scala?
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