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Concatenating null strings in Java [duplicate]
...nstructor that takes any arbitrary reference type.
If you were to have done s = "hello" + s instead, the equivalent code would be:
s = new StringBuilder("hello").append(s).toString();
where in this case the append method takes the null and then delegates it to String.valueOf().
Note: String c...
What is the convention for word separator in Java package names?
How should one separate words in package names? Which of the following are correct?
6 Answers
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How do I check if a property exists on a dynamic anonymous type in c#?
... Not sure what dimension you live in where Type.GetProperty(string) for a nonexistent property returns anything other than null.
– Ian Kemp
Oct 26 '17 at 13:08
2
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How do you install Google frameworks (Play, Accounts, etc.) on a Genymotion virtual device? [duplica
...he ZIP file. This fixes a lot of app crashes and hangs. Just flash the new one, and it should work.
This guide is for getting back both ARM translation/support (this is what causes the "INSTALL_FAILED_CPU_ABI_INCOMPATIBLE" errors) and Google Play apps in your Genymotion VM.
Download the following ...
Chmod 777 to a folder and all contents [duplicate]
...t answer. While the other answers give the 'solution' to the problem, this one explains how a typical folder structure should be setup. Very rarely if ever would you want to make a web folder 777. Read the More info links that @SomnathMuluk has provided so that you can understand why.
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JavaScript by reference vs. by value [duplicate]
...ush(5); now users and x_users are the same since it's passed by reference. One way to fix this would be var x_users = users.slice(0); x_users.push(6); now users and x_users are different since x_users is not referring to users. Took me a while to figure it out :-) Hope this may help someone.
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Stashing only staged changes in git - is it possible?
...Now if you need unstaged files before stash, simply apply first stash (the one created with --keep-index) and now you can remove files you stashed to "good stash".
Enjoy
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How to get input type using jquery?
...lements
@dariomac
$('select').prop("type");
will return either "select-one" or "select-multiple" depending upon the "multiple" attribute and
$('select')[0].type
returns the same for the first select if it exists. and
($('select')[0]?$('select')[0].type:"howdy")
will return the type if ...
How do I work around JavaScript's parseInt octal behavior?
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Why two operations when one binary or would suffice?
– Oleg V. Volkov
Aug 7 '12 at 17:55
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How to git reset --hard a subdirectory?
...-index --skip-worktree (for those directories you want to ignore), as mentioned in "Why do excluded files keep reappearing in my git sparse checkout?".
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