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What is the “volatile” keyword used for?

I read some articles about the volatile keyword but I could not figure out its correct usage. Could you please tell me what it should be used for in C# and in Java? ...
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Enforcing the type of the indexed members of a Typescript object?

I would like to store a mapping of string -> string in a Typescript object, and enforce that all of the keys map to strings. For example: ...
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Exception handling in R [closed]

Does anyone have examples/tutorials of exception handling in R? The official documentation is very terse. 5 Answers ...
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git rebase, keeping track of 'local' and 'remote'

When doing a git rebase, I often have difficulty working out what is happening with the 'local' and 'remote' when resolving conflicts. I sometimes have the impression that they swap sides from one commit to the next. ...
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Why isn't SQL ANSI-92 standard better adopted over ANSI-89?

At every company I have worked at, I have found that people are still writing their SQL queries in the ANSI-89 standard: 16...
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How does this CSS produce a circle?

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“unrecognized selector sent to instance” error in Objective-C

I created a button and added an action for it, but as soon as it invoked, I got this error: 38 Answers ...
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Hide html horizontal but not vertical scrollbar

I have an HTML textarea that is of fixed width, but variable height. I would like to set overflow:scroll and be able to show a vertical scrollbar, but not a horizontal one. I am not able to use overflow:auto due to other things specific to my situation. ...
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Including one C source file in another?

Is it OK (or even recommended/good practice) to #include a .c file in another .c file? 11 Answers ...
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Convert objective-c typedef to its string equivalent

Assuming that I have a typedef declared in my .h file as such: 21 Answers 21 ...