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Get environment variable value in Dockerfile
...that users can pass at build-time to the builder with the docker build command using the --build-arg <varname>=<value> flag.
So your Dockerfile will have this line:
ARG request_domain
or if you'd prefer a default value:
ARG request_domain=127.0.0.1
Now you can reference this vari...
Get visible items in RecyclerView
...d to work with View.getGlobalVisibleRect(...) , but that hack is too ugly and does not always work too.
9 Answers
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select2 - hiding the search box
...ction of 4 hard-coded choices. In this case, the search box is superfluous and looks a little silly being present. Is it possible to hide it somehow? I took a look through the documentation online and couldn't find any options for this in the constructor.
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Comparing two dataframes and getting the differences
...This approach, df1 != df2, works only for dataframes with identical rows and columns. In fact, all dataframes axes are compared with _indexed_same method, and exception is raised if differences found, even in columns/indices order.
If I got you right, you want not to find changes, but symmetric d...
Pure virtual function with implementation
My basic understanding is that there is no implementation for a pure virtual function, however, I was told there might be implementation for pure virtual function.
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Run Command Prompt Commands
Is there any way to run command prompt commands from within a C# application? If so how would I do the following:
14 Answe...
SQL Server loop - how do I loop through a set of records
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By using T-SQL and cursors like this :
DECLARE @MyCursor CURSOR;
DECLARE @MyField YourFieldDataType;
BEGIN
SET @MyCursor = CURSOR FOR
select top 1000 YourField from dbo.table
where StatusID = 7
OPEN @MyCursor
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Why I cannot cout a string?
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and also using namespace std or using std::cout; using std::endl;
– fardjad
Jun 12 '11 at 8:44
2
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How to strip all whitespace from string
...egex is cached, so it's not as slow as you'd imagine. Compiling it beforehand helps some, but would only matter in practice if you call this many times:
$ python -m timeit -s 'import re; e = re.compile(r"\s+")' 'e.sub("", " \t foo \n bar ")'
100000 loops, best of 3: 7.76 usec per loop
Even thoug...
I have an error: setOnItemClickListener cannot be used with a spinner, what is wrong?
Kindly This is my code below, and I am pasting the error messages underneath:
I am trying to use setOnItemClickListener on the spinner, is it permissible?
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