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When and why JPA entities should implement Serializable interface?
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@AaronDigulla Can you please explain it by an example or pseudo code.
– sdindiver
Apr 8 at 17:37
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Git rebase merge conflict cannot continue
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This helped me when my 'git pull --rebase origin master" appeared to get stuck in a loop between needing to resolve conflicts and skip. After a bit more patience, I am fixed, ty!
– AnneTheAgile
Nov 20 '15 at 14:54
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What is the best way to convert an array to a hash in Ruby
In Ruby, given an array in one of the following forms...
11 Answers
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How are the points in CSS specificity calculated
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Pekka's answer is practically correct, and probably the best way to think about the issue.
However, as many have already pointed out, the W3C CSS recommendation states that "Concatenating the three numbers a-b-c (in a number system with a large base) give...
What's the difference between Task.Start/Wait and Async/Await?
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what is the difference between doing Task.Wait and await task?
You order your lunch from the waiter at the restaurant. A moment after giving your order, a friend walks in and sits down next to you and starts a conversation. Now you have two choices. You can ignore your friend until the task ...
Synchronous request in Node.js
If I need to call 3 http API in sequential order, what would be a better alternative to the following code:
18 Answers
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Is \d not supported by grep's basic expressions?
...s (iirc) POSIX regex, and \d is pcre. You can either pass -P to gnu grep, for perl-like regexps, or use [[:digit:]] instead of \d.
daenyth@Bragi ~ $ echo 1 | grep -P '\d'
1
daenyth@Bragi ~ $ echo 1 | grep '[[:digit:]]'
1
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Cross-Origin Request Headers(CORS) with PHP headers
I have a simple PHP script that I am attempting a cross-domain CORS request:
11 Answers
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Merge up to a specific commit
...h named newbranch from the master branch in git. Now I have done some work and want to merge newbranch to master ; however, I have made some extra changes to newbranch and I want to merge newbranch up to the fourth-from-the-last commit to master .
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How to check if a map contains a key in Go?
...es two variables - val will receive either the value of "foo" from the map or a "zero value" (in this case the empty string) and ok will receive a bool that will be set to true if "foo" was actually present in the map
evaluates ok, which will be true if "foo" was in the map
If "foo" is indeed pres...