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How do you specify that a class property is an integer?

... only has the concept of a number, which has a floating point. Philosophically, the amount of work the compiler would have to do to enforce only whole numbers for a TypeScript int type could potentially be massive and in some cases it would still not be possible to ensure at compile time that only ...
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How to “grep” for a filename instead of the contents of a file?

...ts of the file). I will run this from the system's root directory, to find all those files that match the regular expression. ...
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How can I remove a character from a string using Javascript?

I am so close to getting this, but it just isn't right. All I would like to do is remove the character r from a string. The problem is, there is more than one instance of r in the string. However, it is always the character at index 4 (so the 5th character). ...
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How to grey out a button?

... disabled by setting the alpha (making it semi-transparent). This is especially useful if your button background is an image, and you don't want to create states for it. button.setAlpha(.5f); button.setClickable(false); update: I wrote the above solution pre Kotlin and when I was a rookie. It's m...
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How to uninstall Python 2.7 on a Mac OS X 10.6.4?

... PATH variable by reverting my .bash_profile . But I also want to remove all directories, files, symlinks, and entries that got installed by the Python 2.7 install package. I've got the install package from http://www.python.org/ . What directories/files/configuration file entries do I need to re...
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How do you get the index of the current iteration of a foreach loop?

...or iterating over collections that implement IEnumerable. It does this by calling GetEnumerator on the collection, which will return an Enumerator. This Enumerator has a method and a property: MoveNext() Current Current returns the object that Enumerator is currently on, MoveNext updates Current t...
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How to use UIVisualEffectView to Blur Image?

Could someone give a small example of applying the blur to an image? I've been trying to figure out the code for a while now :( still new at obj c! ...
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Glorified classes in the Java language

... lot of different answers, so I thought it would be useful to collect them all (and add some): Classes AutoBoxing classes - the compiler only allows for specific classes Class - has its own literals (int.class for instance). I would also add its generic typing without creating new instances. Stri...
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How to pass json POST data to Web API method as an object?

... with the result :) }); Model binding works for some properties, but not all ! Why ? If you do not decorate the web api method parameter with [FromBody] attribute [HttpPost] public CreateUserViewModel Save(CreateUserViewModel m) { return m; } And send the model(raw javascript object, not i...
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What's a reliable way to make an iOS app crash?

...er performs a particular action that a real user is unlikely to do accidentally. 18 Answers ...