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Why is the tag deprecated in HTML?

... describe its contents. One method of centering is to set the margin-left and margin-right properties of the element to auto, and then set the parent element’s text-align property to center. This guarantees that the element will be centered in all modern browsers. ...
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What's the opposite of chr() in Ruby?

In many languages there's a pair of functions, chr() and ord() , which convert between numbers and character values. In some languages, ord() is called asc() . ...
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How does having a dynamic variable affect performance?

...hat just has the metadata analyzer, the semantic analyzer for expressions, and an emitter that emits Expression Trees instead of IL. The metadata analyzer uses Reflection to determine the type of the object in d1, and then passes that to the semantic analyzer to ask what happens when such an objec...
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Are the PUT, DELETE, HEAD, etc methods available in most web browsers?

... No. The HTML 5 spec mentions: The method and formmethod content attributes are enumerated attributes with the following keywords and states: The keyword get, mapping to the state GET, indicating the HTTP GET method. The GET method should only request and re...
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Easiest way to flip a boolean value?

... it can be helpful to have a TOGGLE(a) macro. This prevents some mistakes and makes it all more readable on narrow screens. – OJW Oct 1 '10 at 12:17  |  ...
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What is the best way to use a HashMap in C++?

I know that STL has a HashMap API, but I cannot find any good and thorough documentation with good examples regarding this. ...
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EOFError: end of file reached issue with Net::HTTP

..._url.port) http.use_ssl = true Note the additional http.use_ssl = true. And the more appropriate code which would handle both http and https will be similar to the following one. url = URI.parse(domain) req = Net::HTTP::Post.new(url.request_uri) req.set_form_data({'name'=>'Sur Max', 'email'=&...
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For each row in an R dataframe

I have a dataframe, and for each row in that dataframe I have to do some complicated lookups and append some data to a file. ...
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AngularJS: How can I pass variables between controllers?

... way to share variables across multiple controllers is to create a service and inject it in any controller where you want to use it. Simple service example: angular.module('myApp', []) .service('sharedProperties', function () { var property = 'First'; return { getP...
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Mark current Line, and navigate through marked lines

...al Studio, we can use: CTRL+kk to place a marker on the current line and CTRL+kn to navigate through marked lines. ...