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Ruby on Rails console is hanging when loading

...le refuses to start; it just hangs. I haven't made any changes to my code, and other projects using the same version of Ruby and Ruby on Rails have no issue. When I finally Ctrl + C I get this stack trace, which points to Spring. ...
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Can we omit parentheses when creating an object using the “new” operator?

... you omit the parenthesis. It reports Missing '()' invoking a constructor, and there doesn't seem to be an option for the tool to tolerate parenthesis omission. 1 David Flanagan: JavaScript the Definitive Guide: 4th Edition (page 75) ...
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How do I ignore files in a directory in Git?

... a match with a directory. In other words, foo/ will match a directory foo and paths underneath it, but will not match a regular file or a symbolic link foo (this is consistent with the way how pathspec works in general in git). If the pattern does not contain a slash /, git treats it as a shell glo...
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How do you produce a .d.ts “typings” definition file from an existing JavaScript library?

I'm using a lot of libraries both my own and 3rd party. I see the "typings" directory contains some for Jquery and WinRT... but how are they created? ...
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Self-references in object literals / initializers

...To complete my above statement, since foo is beeing declared as a variable and c will only be evaluated at the time it is invoked, using foo inside c will work, as opposed to this (be careful though) – Bernardo Dal Corno Apr 19 '18 at 20:11 ...
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Force add despite the .gitignore file

... Well, I tested it to make sure it really works and it does. Can you describe your environemnt (OS, git version ...)? This is what I've basically done: echo "/foo" >> .gitignore; echo "bar" > foo; git add foo # should throw an error; git add -p foo # works (cannot...
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Logger slf4j advantages of formatting with {} instead of string concatenation

...ameters since API version 1.7. For those cases where you need more than 2 and you're stuck with pre-1.7 SLF4J, then just use either string concatenation or new Object[] { param1, param2, param3, ... }. There should be few enough of them that the performance is not as important. ...
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How can I delete one element from an array by value

... What if there are multiple entries of 3 and we wanted to delete only one of them? (this is related so asking this here might be best) – Navneet Oct 18 '12 at 18:24 ...
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Should __init__() call the parent class's __init__()?

...cessary, since the super method is empty. Same for __del__. On the other hand, for __new__, you should indeed call the super method, and use its return as the newly-created object - unless you explicitly want to return something different. ...
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How to get current date in jquery?

...atted like yyyy/mm/dd - is that used in some country? I've seen yyyy-mm-dd and yyyymmdd – Manachi Sep 27 '14 at 17:31 1 ...