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How to match a String against string literals in Rust?
...mprove the usefulness of your answer if you explain what &*stringthing means and does.
– Seth Difley
May 3 at 15:53
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How can I get the diff between all the commits that occurred between two dates with Git?
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The git diff 'master@{1 day ago}..master syntax means "check the reflog and figure out where branch master used to point in your local repository 1 day ago". Specifically, will not use the actual commit history of current branch master. This is very seldom the thing you re...
Check if any ancestor has a class using jQuery
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@dudewad yes it is but it's quite recent. I mean in older jq version, AFAIK, this wasn't the case. Parents loop was not break on first matched parent using closest(), but now it is. (don't know since which jq version but i'm pretty sure to be correct on this statement)...
How does one use rescue in Ruby without the begin and end block
...ice as it rescues StandardError and all its subclasses, like NameError – meaning that even a typo in your code won't raise an error.. See thoughtbot.com/blog/don-t-inline-rescue-in-ruby.
– BrunoFacca
Sep 19 '19 at 18:25
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postgresql port confusion 5433 or 5432?
.../services is only advisory, it's a listing of well-known ports. It doesn't mean that anything is actually running on that port or that the named service will run on that port.
In PostgreSQL's case it's typical to use port 5432 if it is available. If it isn't, most installers will choose the next fr...
What do the icons in Eclipse mean?
...lover or some clickable thing come up with a human readable version of the meaning. There's cases where icons are nearly useless, and then there's eclipse icons.
– stu
Aug 9 '12 at 19:48
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What does ~> mean in a gem file [duplicate]
...ut it limits versions to a subset of the possible versions. So ~> 2.0.0 means ">= 2.0.0 and < 2.1.0" in version numbers.
1.2.3 seems to be the latest version of Formtasic, that's why you're getting this error message.
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What do numbers using 0x notation mean?
What does a 0x prefix on a number mean?
5 Answers
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What does the 'u' symbol mean in front of string values? [duplicate]
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The 'u' in front of the string values means the string is a Unicode string. Unicode is a way to represent more characters than normal ASCII can manage. The fact that you're seeing the u means you're on Python 2 - strings are Unicode by default on Python 3, but on...
What does -1 mean in numpy reshape?
... vector using reshape function with parameter -1. But I don't know what -1 means here.
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