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Difference between socket and websocket?

...lications that require a permanent connection to its server. On the other hand, plain sockets are more powerful and generic. They run over TCP/IP but they are not restricted to browsers or HTTP protocol. They could be used to implement any kind of communication. No. There is no reason. ...
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How to replace an entire line in a text file by line number

... For me it says: sed: -e expression #1, char 26: unknown option to ``s' and my line is: sed -i '7s/.*/<param-value>http://localhost:8080/ASDF/services/REWS.REWSHttpSoap12Endpoint/</param-value>/' $TCE_SVN_HOME\trunk\tce\EWC\WebContent\WEB-INF\web.xml. Any idea? –...
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Checkout multiple git repos into same Jenkins workspace

Using Jenkins 1.501 and Jenkins Git plugin 1.1.26 9 Answers 9 ...
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Storing DateTime (UTC) vs. storing DateTimeOffset

...ing from/to the database does DateTime conversion (from UTC to local time, and from local time to UTC), so I can use DateTime.Now (derivations and comparisions) throughout the system without worrying about time zones. ...
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POSTing a @OneToMany sub-resource association in Spring Data REST

... You have to post the comment first and while posting the comment you can create an association posts entity. It should look something like below : http://{server:port}/comment METHOD:POST {"author":"abc","content":"PQROHSFHFSHOFSHOSF", "post":"http://{serve...
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cartesian product in pandas

I have two pandas dataframes: 11 Answers 11 ...
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How do I use the conditional operator (? :) in Ruby?

... It is the ternary operator, and it works like in C (the parenthesis are not required). It's an expression that works like: if_this_is_a_true_value ? then_the_result_is_this : else_it_is_this However, in Ruby, if is also an expression so: if a then b ...
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When to use next() and return next() in Node.js

...eturn next(); // do something }); It saves me an indentation level, and when I read the code again later, I'm sure there is no way next is called twice. share | improve this answer |...
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How to un-commit last un-pushed git commit without losing the changes

...e to dig it from reflog in case you screw up :) ) revert commit normally and push git checkout master git revert a8172f36 #hash of the commit you want to destroy # this introduces a new commit (say, it's hash is 86b48ba) which removes changes, introduced in the commit in question (but those chan...
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CSS Display an Image Resized and Cropped

I want to show an image from an URL with a certain width and height even if it has a different size ratio. So I want to resize (maintaining the ratio) and then cut the image to the size I want. ...