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How to subtract X day from a Date object in Java?
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How to check if a file exists in Go?
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The second snippet is more subtly wrong; the condition should be !os.IsNotExist(err). It's possible the file exists but os.Stat fails for other reasons (eg. permission, failing disk). Using err == nil as the condition incorrectly categorises such ...
Cookie overflow in rails application?
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Load view from an external xib file in storyboard
...h because it doesn't currently have an init(frame:). See this tutorial for more details.
– Suragch
Jan 6 '17 at 8:18
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How to keep the spaces at the end and/or at the beginning of a String?
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What is the purpose of “&&” in a shell command?
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Furthermore, you also have || which is the logical or, and also ; which is just a separator which doesn't care what happend to the command before.
$ false || echo "Oops, fail"
Oops, fail
$ true || echo "Will not be printed"
$
$...
How can I connect to MySQL in Python 3 on Windows?
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How can I load an object into a variable name that I specify from an R data file?
...s function returns an object loaded from a supplied .rda file. If there is more than one object in the file, an arbitrary one is returned.
load_obj <- function(f)
{
env <- new.env()
nm <- load(f, env)[1]
env[[nm]]
}
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What do REFRESH and MERGE mean in terms of databases?
... refreshed.
MERGE means something complex that approximates "save" but is more like "push this detached entity back into managed status and save its state changes"; the cascading means that all associated entities get pushed back the same way, and the managed-entity handle you get back from .merge(...
Creating your own header file in C
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