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How can I test if a letter in a string is uppercase or lowercase using JavaScript?

... The answer by josh and maleki will return true on both upper and lower case if the character or the whole string is numeric. making the result a false result. example using josh var character = '5'; if (character == character.toUpperCase()) {...
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Bootstrap right Column on top on mobile view

... to accomplish this. col-md-push-6 will "push" the column to the right 6 and col-md-pull-6 will "pull" the column to the left on "md" or greater view-ports. On any smaller view-ports the columns will be in normal order again. I think what throws people off, is that you have to put B above A in yo...
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What is a Maven artifact?

What is an artifact and why does Maven need it? 9 Answers 9 ...
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What does jQuery.fn mean?

...pe property. The jQuery identifier (or $) is just a constructor function, and all instances created with it, inherit from the constructor's prototype. A simple constructor function: function Test() { this.a = 'a'; } Test.prototype.b = 'b'; var test = new Test(); test.a; // "a", own property t...
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How to cherry pick only changes for only one file, not the whole commit

...le. So if you added a line in a commit, but previous commits changed more, and you only want to add that line without those other changes, then a checkout is not what you want. Otherwise if you want to apply the patch introduced in a commit to only a single file, you have multiple options. You coul...
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Object.watch() for all browsers?

Please note that Object.Watch and Object.Observe are both deprecated now (as of Jun 2018). 8 Answers ...
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Trying to git pull with error: cannot open .git/FETCH_HEAD: Permission denied

...ecause your user doesn't have the permissions for changing that directory, and the second because your root user doesn't have the right SSH keys for accessing that git repository. Depending on what you're trying to do, it might be better to clone the repository to a different directory, or maybe ch...
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Instance variable: self vs @

... I have once read a book in rails and don't understand the difference between this self and @, so I should always use self.var_name in my methods (that doesn't setter and getter) to make my data using public interface, I spent time defining it in getter and s...
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Are delphi variables initialized with a value by default?

I'm new to Delphi, and I've been running some tests to see what object variables and stack variables are initialized to by default: ...
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What are the GCC default include directories?

...e a very simple source file with gcc I don't have to specify the path to standard include files such as stdio or stdlib. 4 ...