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Refresh image with a new one at the same url

...ppend the current timestamp automatically when you are creating the image, and it will make the browser look again for the image instead of retrieving the one in the cache. share | improve this answ...
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What is the difference between NTFS Junction Points and Symbolic Links?

...t a high level, the only obvious difference between NTFS Junction Points and Symbolic Links is that Junctions are only able to be directories, while SymLinks are allowed to also target files. ...
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Is gettimeofday() guaranteed to be of microsecond resolution?

...h, I believe the resolution of gettimeofday() is 10us. It can jump forward and backward and time, consequently, based on the processes running on your system. This effectively makes the answer to your question no. You should look into clock_gettime(CLOCK_MONOTONIC) for timing intervals. It suffers ...
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What is a “feature flag”?

...s/features can be toggled live. I guess the example there was that it's handy to have the control to reduce the feature-set somewhat if you need to, say, reduce db queries if the load is too high. There are heaps of other reasons you would want to use this though - one of the main being enabling...
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How to debug a single thread in Visual Studio?

...t projects. I want to trace the first thread hit one of these break-points and continue tracing that single thread despite of other threads entering the same code-blocks. ...
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How do the PHP equality (== double equals) and identity (=== triple equals) comparison operators dif

What is the difference between == and === in PHP? 11 Answers 11 ...
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Using Core Data, iCloud and CloudKit for syncing and backup and how it works together

...am in the early stages of creating an app where I would like to save, sync and backup data. The app will not store any files just data in a database. It is going to be iOS 8 and up so I am able to use CloudKit. I did some research and still not clear on how Core Data, iCloud and CloudKit work toge...
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Advantages of stateless programming?

...programming (specifically Haskell, but I've gone through tutorials on Lisp and Erlang as well). While I found the concepts very enlightening, I still don't see the practical side of the "no side effects" concept. What are the practical advantages of it? I'm trying to think in the functional mindset...
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Traversing text in Insert mode

... Vim, is there any way to traverse the text moving some characters forward and backward other than using the arrow keys? 12...
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What is the difference between atomic and critical in OpenMP?

What is the difference between atomic and critical in OpenMP? 8 Answers 8 ...