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Remove multiple keys from Map in efficient way?
...ng,String> with large number of key values pairs. Now I want to remove selected keys from that Map . Following code shows what I did to achieve that.
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mysql command for showing current configuration variables
...ent global setting for the innodb_log_buffer_size in bytes and megabytes:
SELECT
variable_name,
variable_value AS innodb_log_buffer_size_bytes,
ROUND(variable_value / (1024*1024)) AS innodb_log_buffer_size_mb
FROM information_schema.global_variables
WHERE variable_name LIKE 'innodb_log_buffe...
configure Git to accept a particular self-signed server certificate for a particular https remote
...es -> View Certificates -> Servers, found there the selfsigned host, selected it and using Export button I got exactly the same file, as created using openssl.
Note: I was a bit surprised, there is no name of the authority visibly mentioned. This is fine.
Having the trusted certificate in de...
Scope of sessionStorage and localStorage
...se called webappsstore.sqlite in my Firefox profile directory, using query SELECT scope FROM webappsstore2;. The result is the reverse of the domain, followed by the non-reversed protocol, and sufficed with the port, eg: gro.allizom.snodda.secivres.:https:443. As you can see, there's no mention of a...
Practical uses of different data structures [closed]
...ght accent at all. You need to understand not just which data structure to select, but some other points to consider when people think about data structures:
pros and cons of the common data structures
why each data structure exist
how it actually work in the memory
specific questions/exe...
Calculate distance between 2 GPS coordinates
...
This is very easy to do with geography type in SQL Server 2008.
SELECT geography::Point(lat1, lon1, 4326).STDistance(geography::Point(lat2, lon2, 4326))
-- computes distance in meters using eliptical model, accurate to the mm
4326 is SRID for WGS84 elipsoidal Earth model
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Set value of hidden field in a form using jQuery's “.val()” doesn't work
...ontribute to any problems you're having, and specifying a more complicated selector just slows things down and doesn't look as neat.
Example at http://jsbin.com/elovo/edit, using your example code at http://jsbin.com/elovo/2/edit
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Print all but the first three columns
...ents. We have asked the OP to choose a more correct answer, and he/she has selected mine. After some other contributors have edited my answer to reference there answer (see the history). Is it clear for you? What do you advice me to improve the understandability of my answer? Cheers ;-)
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In git, is there a simple way of introducing an unrelated branch to a repository?
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The currently selected answer is correct, I would just add that coincidentally...
This is actually exactly how github.com lets users create Github Pages for their repos, thru an orphaned branch called gh-pages.
The pretty steps are given ...
Python time measure function
....time() - start
return ret, elapsed
timed(lambda: database.foo.execute('select count(*) from source.apachelog'))
(<sqlalchemy.engine.result.ResultProxy object at 0x7fd6c20fc690>, 4.07547402381897)
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