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Invoke(Delegate)

...und to a specific thread and are not thread safe. Therefore, if you are calling a control's method from a different thread, you must use one of the control's invoke methods to marshal the call to the proper thread. This property can be used to determine if you must call an invoke method, whi...
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What do the makefile symbols $@ and $< mean?

...e name of the target being generated, and $&lt; the first prerequisite (usually a source file). You can find a list of all these special variables in the GNU Make manual. For example, consider the following declaration: all: library.cpp main.cpp In this case: $@ evaluates to all $&lt; evaluates to...
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How do I discard unstaged changes in Git?

... @KarimSamir: The question specifically asks about changes that are not in the index. The git reset command will discard changes in the index too. – Greg Hewgill Apr 12 '15 at 17:28 ...
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What does “Changes not staged for commit” mean

...epository, you have to git add it again if you want it to be staged. This allows you to commit only a subset of the changes you made since the last commit. For example, let's say you have file a, file b and file c. You modify file a and file b but the changes are very different in nature and you do...
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What is the recommended approach towards multi-tenant databases in MongoDB?

...ecifics of the database design. Collections (or buckets or however they call it in different DBs) are not the same thing as security schemas in RDBMS despite they behave as container for documents they are useless for applying good tenant separation. I couldn't find NoSQL database that can apply s...
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jquery get all form elements: input, textarea & select

Is there an easy way (without listing them all separately) in jquery to select all form elements and only form elements. 12...
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git recover deleted file where no commit was made after the delete

...this in my config file $ git config alias.unstage reset HEAD which I usually use to unstage stuff. share | improve this answer | follow | ...
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Why do we need private subnet in VPC?

...tioning as a "NAT instance," providing network address translation (technically, port address translation) for instances in other, private subnets, allowing those machines to use the NAT instance's public IP address for their outbound Internet access. The new managed NAT service does not fundamen...
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How many concurrent requests does a single Flask process receive?

...tion and simply increasing the number of --workers, what you get is essentially a number of processes (managed by Gunicorn) that each behave like the app.run() development server. 4 workers == 4 concurrent requests. This is because Gunicorn uses its included sync worker type by default. It is impo...
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jquery - return value using ajax result on success

I have a small problem with jquery $.ajax() function. 9 Answers 9 ...