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What exactly is Python multiprocessing Module's .join() Method Doing?
...ll.
Now, the reason you see the 20 second delay both with and without the call to join() is because by default, when the main process is ready to exit, it will implicitly call join() on all running multiprocessing.Process instances. This isn't as clearly stated in the multiprocessing docs as it sho...
How to call Makefile from another Makefile?
I'm getting some unexpected results calling one makefile from another. I have two makefiles, one called /path/to/project/makefile and one called /path/to/project/gtest-1.4.0/make/Makefile . I'm attempting to have the former call the latter. In /path/to/project/makefile, I have
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onclick() and onblur() ordering issue
...ouseUp, no flags. This resolved the problem by letting the browser automatically re-order based on the priority of these event handlers, without any additional work from me.
Is there any reason why this wouldn't have also worked for you?
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Class vs. static method in JavaScript
...esn't find another prototype.
The hierarchy starts on the object that was called, and then searches its prototype object. If the prototype object has a prototype, it repeats, if no prototype exists, undefined is returned.
For example:
foo = {bar: 'baz'};
console.log(foo.bar); // logs "baz"
foo =...
Oracle SQL Query for listing all Schemas in a DB
...t. However, there can be a semantic distinction where people only want to call something a schema if it actually owns at least one object so that the hundreds of user accounts that will never own any objects are excluded. In that case
SELECT username
FROM dba_users u
WHERE EXISTS (
SELECT ...
Parsing JSON giving “unexpected token o” error [duplicate]
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Just calling JSON.stringify will do nothing with your data, the function actually returns your now serialized data.
– Tom Hofman
Aug 15 '17 at 11:08
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Compare two data.frames to find the rows in data.frame 1 that are not present in data.frame 2
...for me, but it seems to only work as shown above if one set contains identically matching rows of the other set. Consider this case: a2 <- data.frame(a = c(1:3, 1), b = c(letters[1:3], "c")). Leave a1 the same. Now try the comparison. It's not clear to me even in reading the options what the prop...
Horizontal ListView in Android?
...lery view, but the selected item comes to the center of the screen automatically. I don't want the selected item at the same spot I clicked. How can I rectify this problem? My idea was to set the ListView with a horizontal scroll. Share your idea?
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Difference between Role and GrantedAuthority in Spring Security
...tion of the hasAuthority() method in SecurityExpressionRoot - which simply calls hasRole()). With Spring Security 4, the treatment of roles is more consistent and code that deals with "roles" (like the RoleVoter, the hasRole expression etc.) always adds the ROLE_ prefix for you. So hasAuthority('ROL...
What is a practical use for a closure in JavaScript?
...s now an object, with a method publicfunction ( a.publicfunction() ) which calls privatefunction, which only exists inside the closure. You can NOT call privatefunction directly (i.e. a.privatefunction() ), just publicfunction().
Its a minimal example but maybe you can see uses to it? We used this...