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What does it mean in shell when we put a command inside dollar sign and parentheses: $(command)
...(variable) name return the value inside the variable name, but what is $(command) supposed to return? Does it return the value after executing the command? In that case, we can use ` to execute the command.
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Find all elements on a page whose element ID contains a certain text using jQuery
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MySQL: @variable vs. variable. What's the difference?
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edited Jul 22 at 10:06
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answered Jun 17 '09 at 23:39
QuassnoiQuassnoi
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Conditional import of modules in Python
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Notepad++: How to automatically set Language as Xml when load files
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How to copy text to clipboard/pasteboard with Swift
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Uncaught ReferenceError: $ is not defined?
How come this code throws an
39 Answers
39
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Meaning of Open hashing and Closed hashing
... (aka. address) at which an object will be stored in the hash table is not completely determined by its hash code. Instead, the index may vary depending on what's already in the hash table.
The "closed" in "closed hashing" refers to the fact that we never leave the hash table; every object is st...
EOFError: end of file reached issue with Net::HTTP
...uest_uri)
req.set_form_data({'name'=>'Sur Max', 'email'=>'some@email.com'})
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = (url.scheme == "https")
response = http.request(req)
See more in my blog: EOFError: end of file reached issue when post a form with Net::HTTP.
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What is a servicebus and when do I need one?
...each node, like a queue in the case of a bus for supporting semi-connected communication, or an Ethernet card in the metaphor.
Beyond just the physical, there is the "protocol" part of the communication, like the OSI stack for Ethernet. With the bus, this is the client libraries used by application...