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How to set an environment variable only for the duration of the script?

... for the duration of the script? For example, in a shell script, making an app that saves to HOME portable by temporarily setting HOME to a folder in the present working directory, and then launching the app. ...
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how to specify local modules as npm package dependencies

I have an application which has the usual set of dependencies on third party modules (e.g. 'express') specified in the package.json file under dependencies. E.g. ...
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Is “IF” expensive?

...is all mean for performance? When the processor sees a branch instruction appear in its pipeline, it needs to figure out how to continue to fill up its pipeline. In order to figure out what instructions come after the branch in the program stream, it needs to know two things: (1) if the branch wil...
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Capture screenshot of active window?

I am making a screen capturing application and everything is going fine. All I need to do is capture the active window and take a screenshot of this active window. Does anyone know how I can do this? ...
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Why is Spring's ApplicationContext.getBean considered bad?

...-cast Spring Beans and had multiple people respond that calling Spring's ApplicationContext.getBean() should be avoided as much as possible. Why is that? ...
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Creating stored procedure and SQLite?

...r Java extensions, tera- or peta-byte scalability, and so forth Source : Appropriate Uses For SQLite share | improve this answer | follow | ...
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How to do a GitHub pull request

... i.e., make its topic "tight", don't modify thousands of class and the all app, only add or fix a well-defined feature, keeping the changes small. delete that branch: once accepted, you can safely delete that branch on your fork (and git remote prune origin). The GitHub GUI will propose for you to d...
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When should one use RxJava Observable and when simple Callback on Android?

I'm working on networking for my app. So I decided to try out Square's Retrofit . I see that they support simple Callback ...
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How do I get an HttpContext object from HttpContextBase in ASP.NET MVC 1?

...returns null during an asynchronous request). I'm aware of HttpContextWrapper , but goes the wrong way. 3 Answers ...
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Is it possible to move/rename files in Git and maintain their history?

...es, and instead there are merge/log tools that attempt to figure out what happened - and rarely get it right. Linus has a mistaken but vehement argument as to why git should never just do it the right way and track renames explicitly. So, we're stuck here. – Chris Moschini ...