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How does Google calculate my location on a desktop?
...the wifis you passed, and returns the "wardrived" position if found, eventually with triangulation if intensities are present. The more wifi networks around, the higher is the accuracy of the positioning.
adds additional networks you see that are currently not in the database to their database, so t...
Why is it possible to recover from a StackOverflowError?
...of the currently active function
delete its stack frame, proceed with the calling function
abort the execution of the caller
delete its stack frame, proceed with the calling function
and so on...
... until the exception is caught. This is normal (in fact, necessary) and independent of which except...
How to overwrite styling in Twitter Bootstrap
...
Not good practice: github.com/CSSLint/csslint/wiki/Disallow-adjoining-classes
– Damjan Pavlica
Apr 27 '16 at 10:05
2
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Docker and securing passwords
...
A default installation of docker (on linux) requires sudoer privileges to run docker inspect. If the attacker can already sudo, snatching your password out of docker inspect is probably pretty low on your list of things that can now go wr...
How to log SQL statements in Grails
I want to log in the console or in a file, all the queries that Grails does, to check performance.
10 Answers
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What's the correct way to communicate between controllers in AngularJS?
...ms as raised by @numan. That is because the event will bubble down through all scopes.
However, the latter (using $rootScope.$emit + $rootScope.$on) does not suffer from this and can therefore be used as a fast communication channel!
From the angular documentation of $emit:
Dispatches an even...
CSS: fixed position on x-axis but not y?
... Spent ages finding a solution for this, your answer fit my needs ideally.
– Christopher Shaw
May 3 '18 at 9:43
6
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Oracle: If Table Exists
...her reason (that might be important) the exception is still raised to the caller:
BEGIN
EXECUTE IMMEDIATE 'DROP TABLE ' || table_name;
EXCEPTION
WHEN OTHERS THEN
IF SQLCODE != -942 THEN
RAISE;
END IF;
END;
ADDENDUM
For reference, here are the equivalent blocks for other...
JPA OneToMany not deleting child
...em with a simple @OneToMany mapping between a parent and a child entity. All works well, only that child records are not deleted when I remove them from the collection.
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What's the valid way to include an image with no src?
I have an image that I will dynamically populate with a src later with javascript but for ease I want the image tag to exist at pageload but just not display anything. I know <img src='' /> is invalid so what's the best way to do this?
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