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

...ter.toLowerCase()){ alert ('lower case true'); } another way is to test it first if it is numeric, else test it if upper or lower case example var strings = 'this iS a TeSt 523 Now!'; var i=0; var character=''; while (i <= strings.length){ character = strings.charAt(i); if (!isNaN(ch...
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How to get started on TDD with Ruby on Rails? [closed]

I am familiar with the concepts (took testing classes in college), but I am not sure how to really use them yet since I never worked on a "real" TDD project. ...
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How to read a single character from the user?

... from the user input? For instance, they press one key at the terminal and it is returned (sort of like getch() ). I know there's a function in Windows for it, but I'd like something that is cross-platform. ...
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JSON serialization of Google App Engine models

I've been searching for quite a while with no success. My project isn't using Django, is there a simple way to serialize App Engine models (google.appengine.ext.db.Model) into JSON or do I need to write my own serializer? ...
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Replacing spaces with underscores in JavaScript?

I'm trying to use this code to replace spaces with _, it works for the first space in the string but all the other instances of spaces remain unchanged. Anybody know why? ...
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What is the difference between -viewWillAppear: and -viewDidAppear:?

...Load - Whenever I'm adding controls to a view that should appear together with the view, right away, I put it in the ViewDidLoad method. Basically this method is called whenever the view was loaded into memory. So for example, if my view is a form with 3 labels, I would add the labels here; the view...
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Sending JWT token in the headers with Postman

I'm testing an implementation of JWT Token based security based off the following article . I have successfully received a token from the test server. I can't figure out how to have the Chrome POSTMAN REST Client program send the token in the header. ...
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How can I detect the touch event of an UIImageView?

... In practical terms, don't do that. Instead add a button with Custom style (no button graphics unless you specify images) over the UIImageView. Then attach whatever methods you want called to that. You can use that technique for many cases where you really want some area of the sc...
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How to convert string to Title Case in Python?

... Why not use title Right from the docs: >>> "they're bill's friends from the UK".title() "They'Re Bill'S Friends From The Uk" If you really wanted PascalCase you can use this: >>> ''.join(x for x in 'make IT pascal Ca...
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How to properly create an SVN tag from trunk?

... You are correct in that it's not "right" to add files to the tags folder. You've correctly guessed that copy is the operation to use; it lets Subversion keep track of the history of these files, and also (I assume) store them much more efficiently....