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Specifying rails version to use when creating a new application
...N = '2.1.2' unless defined? RAILS_GEM_VERSION
or use the "rails" command form the version you want anyway.
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How can I detect if the user is on localhost in PHP?
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Yeah, this is bad advice and in its current form and needs to be edited - or downvoted.
– Pekka
Aug 3 '13 at 8:40
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Getting SyntaxError for print with keyword argument end=' '
...sion 2.xx.xx. Thank you so much, I applied the suggestion to put it in the form of print "foo" %bar, and it worked perfectly fine.
– Mehrad
May 5 '14 at 23:20
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In an array of objects, fastest way to find the index of an object whose attributes match a search
...ly, the hash function I provide is not valid for all cases since '_' could form part of your values but it is just a quick example you can figure out different hash methods.
– Pablo Francisco Pérez Hidalgo
Sep 5 '14 at 10:12
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One-liner to take some properties from object in ES 6
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This is a convenient form of omit, but not pick
– kirilloid
May 11 '17 at 10:56
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What does [STAThread] do?
...ows message pump to communicate with COM components. Although core Windows Forms does not use COM, many components of the OS such as system dialogs do use this technology.
MSDN explains the reason in slightly more detail:
STAThreadAttribute indicates that the
COM threading model for the
app...
Why does std::getline() skip input after a formatted extraction?
...ain in the buffer for the next I/O operation. You'll notice that if you perform another read from the line into state, your extraction will yield the correct result as the last call to std::getline() discarded the delimiter.
You may have noticed that you don't typically run into this problem when e...
Expression Versus Statement
...ammar as we know it today—that idea was invented, along with Backus-Naur Form (BNF), as part of the definition of Algol-60. At that point the semantic distinction ("have a value" versus "do something") was enshrined in syntax: one kind of phrase was an expression, and another was a statement, and...
How to set value of input text using jQuery
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@using (Html.BeginForm()) { @Html.ValidationSummary(true) <fieldset> <legend>Reservation</legend> ......... <div class="editor-label"> @Html.LabelF...
lexers vs parsers
...remely good at handling this simpler structure, and there are very high-performance regular-expression matching engines used to implement lexers.
Parsers are used to recognize "structure" of a language phrases. Such structure is generally far beyond what "regular expressions" can recognize, so one...