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How to check if a variable is set in Bash?
How do I know if a variable is set in Bash?
33 Answers
33
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How to maintain aspect ratio using HTML IMG tag
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This makes no sense for dynamic applications. It is not known whether width or height will be at 64px, as it depends on the ratio of the image. Why is this the upvoted response?
– Koenigsberg
Jul 31 '18 at 8:45
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Java: is there a map function?
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@SeanPatrickFloyd now that Java 8 is out, want to update this with an example involving lambdas? Like Collections2.transform(input -> Integer.toHexString(intput.intValue())
– Daniel Lubarov
Apr 4 '14 a...
Search and Replace with RegEx components in Atom editor
...en the search pane, there is a ".*" button at the right side. Click it and now it's regex mode.
I find
(http.*)\{\.uri\}
and replace to
[$1]($1)
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How to use ? : if statements with Razor and inline code blocks
... " " in my page, respectively generate the source  . Now there is a function Html.Raw(" ") which is supposed to let you write source code, except in this constellation it throws a compiler error:
Compiler Error Message: CS0173: Type of conditional expression cannot...
Do Google refresh tokens expire?
...nd then we could archive their mail (we are required to do so by law), but now as soon as they change their password, the refresh token is revoked.
Perhaps for youtube, maps, the refresh token is still truly long lived, but for gmail api, count on a short token.
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jQuery .live() vs .on() method for adding a click event after loading dynamic html
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@jfriend00 do you happen to know how we can apply this same process to a hover, non-hover situation? is there a source that talks about this?
– klewis
Jan 29 '16 at 20:52
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How can one display images side by side in a GitHub README.md?
...at little trick if there is not enough space between the pictures. Didn't know github actually parses that.
– NullDev
Oct 17 '17 at 14:01
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Convert Python dict into a dataframe
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@user1009091 I realised what the error means now, it's basically saying "What I'm seeing is a Series, so use Series constructor".
– Andy Hayden
Sep 16 '13 at 21:16
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Encoding URL query parameters in Java
How does one encode query parameters to go on a url in Java? I know, this seems like an obvious and already asked question.
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