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Java how to replace 2 or more spaces with single space in string and delete leading and trailing spa
...ll() uses less memory than doing it the other way around. Not by much, but if this gets called many many times, it might add up, especially if there's a lot of "trimmable whitespace". (Trim() doesn't really get rid of the extra space - it just hides it by moving the start and end values. The underly...
Frequency table for a single variable
... and straightforward, but I thought I'd add my own input to this question. If you look at the code for pandas.value_counts, you'll see that there is a lot going on.
If you need to calculate the frequency of many series, this could take a while. A faster implementation would be to use numpy.unique w...
How do I handle too long index names in a Ruby on Rails ActiveRecord migration?
...id", "subject_type_id"],
:unique => true,
:name => 'my_index'
If using the :index option on references in a create_table block, it takes the same options hash as add_index as its value:
t.references :long_name, index: { name: :my_index }
...
Modifying the “Path to executable” of a windows service
I'd like to modify the path to my application, but doing so breaks it because the service still points to the old location.
...
What is the difference between Integer and int in Java?
...t a class and therefore doesn't have any methods.
Integer is a class, no different from any other in the Java language. Variables of type Integer store references to Integer objects, just as with any other reference (object) type. Integer.parseInt("1") is a call to the static method parseInt from c...
The tilde operator in Python
...a single argument) that is borrowed from C, where all data types are just different ways of interpreting bytes. It is the "invert" or "complement" operation, in which all the bits of the input data are reversed.
In Python, for integers, the bits of the twos-complement representation of the integer...
Reactive Extensions bug on Windows Phone
...ed with VS 2012 , with project type WP 8.0 the following code will fail if debugger is not attached.
1 Answer
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Find and replace strings in vim on multiple lines
...
:6,10s/<search_string>/<replace_string>/g | 14,18&&
If you have many ranges though, I'd rather use a loop:
:for range in split('6,10 14,18')| exe range 's/<search_string>/<replace_string>/g' | endfor
...
How can I decompress a gzip stream with zlib?
...er as 16+MAX_WBITS, like this:
inflateInit2(&stream, 16+MAX_WBITS);
If you don't do this, zlib will complain about a bad stream format. By default, zlib creates streams with a zlib header, and on inflate does not recognise the different gzip header unless you tell it so. Although this is docu...
powershell 2.0 try catch how to access the exception
... fl * -Force
}
I think it will give you all the info you need.
My rule: if there is some data that is not displayed, try to use -force.
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