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What is the meaning of the term “thread-safe”?
Does it mean that two threads can't change the underlying data simultaneously? Or does it mean that the given code segment will run with predictable results when multiple threads are executing that code segment?
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How do I remove  from the beginning of a file?
...ave a CSS file that looks fine when I open it using gedit , but when it's read by PHP (to merge all the CSS files into one), this CSS has the following characters prepended to it: 
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MongoDB Many-to-Many Association
...ns using MongoDB, Redis, and other NoSQL data stores by optimizing for the read use cases, while being considerate of the atomic write operations that need to be supported by the write use cases.
For instance, the uses of a "Users in Roles" domain follow:
Role - Create, Read, Update, Delete, List...
How to hide reference counts in VS2013?
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That would be it! Just a note to anyone else who might be reading this: unchecking "Show References" alone will not get rid of the giant gap where the "references" text normally is. Unchecking "Enable Code Information Indicators" does get rid of the gap, however.
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Design patterns to avoid [closed]
...solutions. However it is instead much more interesting for a programmer to read up on design techniques and principles that lay the foundation for most of the patterns. In fact one of my favorite books on 'design patterns' stresses this by reiterating on what principles are applicable on the pattern...
What is the difference between a thread and a fiber?
What is the difference between a thread and a fiber? I've heard of fibers from ruby and I've read heard they're available in other languages, could somebody explain to me in simple terms what is the difference between a thread and a fiber.
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How to see query history in SQL Server Management Studio
...e queries executed in SSMS by default. There are several options though.
Reading transaction log – this is not an easy thing to do because its in proprietary format. However if you need to see queries that were executed historically (except SELECT) this is the only way.
You can use third party...
How to merge 2 JSON objects from 2 files using jq?
...:"baz","a":0}' | jq -s add
{
"a": 0,
"b": "bar",
"c": "baz"
}
This reads all JSON texts from stdin into an array (jq -s does that) then it "reduces" them.
(add is defined as def add: reduce .[] as $x (null; . + $x);, which iterates over the input array's/object's values and adds them. Obje...
Analytics Google API Error 403: “User does not have any Google Analytics Account”
...ed the permissions of the email account from inside Google Analytics from 'Read & Analyze' to something else, saved it, and then changed the permissions back to 'Read & Analyze' and it worked.
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In practice, what are the main uses for the new “yield from” syntax in Python 3.3?
...at sending data to a generator even means, you need to drop everything and read about coroutines first—they're very useful (contrast them with subroutines), but unfortunately lesser-known in Python. Dave Beazley's Curious Course on Coroutines is an excellent start. Read slides 24-33 for a quick pr...