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Can constructors be async?
I have a project where I'm trying to populate some data in a constructor:
13 Answers
1...
npm throws error without sudo
...hrough the package on nodejs.org and whenever I try to search or install something with npm it throws the following error, unless I sudo the command. I have a feeling this is a permissions issue? I am already the admin.
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Infinite Recursion with Jackson JSON and Hibernate JPA issue
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@axtavt Thanks for perfect answer. Btw, I came with another solution: you can simply avoid creating getter for this value, so Spring won't be able to access it while creating JSON (but I don't think that it suits every case, so your answer is better)
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Iterate over a list of files with spaces
... over a list of files. This list is the result of a find command, so I came up with:
11 Answers
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How do I find a “gap” in running counter with SQL?
...ems supporting sliding window functions:
SELECT -- TOP 1
-- Uncomment above for SQL Server 2012+
previd
FROM (
SELECT id,
LAG(id) OVER (ORDER BY id) previd
FROM mytable
) q
WHERE previd <> id - 1
ORDER BY
id
-- LIMIT 1
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Conditionally start at different places in storyboard from AppDelegate
...en login is successful.
My objective is to show the main view controller immediately if the authentication (stored in keychain) is successful, and show the login view controller if the authentication failed.
Basically, I want to do this in my AppDelegate:
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Approximate cost to access various caches and main memory?
Can anyone give me the approximate time (in nanoseconds) to access L1, L2 and L3 caches, as well as main memory on Intel i7 processors?
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Java inner class and static nested class
...tween an inner class and a static nested class in Java? Does design / implementation play a role in choosing one of these?
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std::function vs template
...der principle: try to specify as many constraints as possible at compile-time. The rationale is simple: if you can catch an error, or a type mismatch, even before your program is generated, you won't ship a buggy program to your customer.
Moreover, as you correctly pointed out, calls to template f...
Differences between Proxy and Decorator Pattern
...ote from the GoF (page 216).
Although decorators can have similar implementations as proxies, decorators have a different purpose. A decorator adds one or more responsibilities to an object, whereas a proxy controls access to an object.
Proxies vary in the degree to which they are implement...