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Can't install Ruby under Lion with RVM – GCC issues

... This answer was edited multiple times and now contains several alternative solutions. Try the simple “Edit 3” solution first. Ruby 1.9.3-p125 and later have official support for clang, so if you are installing such a version you should not need GCC. If you...
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How to concatenate two numbers in javascript?

... Ok so, suposing the values 5 and 6 are in two variables: var1 = 5; var2 = 6; will it still work – Heidi Nov 12 '09 at 17:03 4 ...
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add created_at and updated_at fields to mongoose schemas

Is there a way to add created_at and updated_at fields to a mongoose schema, without having to pass them in everytime new MyModel() is called? ...
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Simple (non-secure) hash function for JavaScript? [duplicate]

... can simply call .hashCode() on any string, e.g. "some string".hashCode(), and receive a numerical hash code (more specifically, a Java equivalent) such as 1395333309. String.prototype.hashCode = function() { var hash = 0; if (this.length == 0) { return hash; } for (var i =...
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Why should I care about lightweight vs. annotated tags?

I switched from Subversion to Git as my day-to-day VCS last year and am still trying to grasp the finer points of "Git-think". ...
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Difference between Node object and Element object?

I am totally confused between Node object and Element object. document.getElementById() returns Element object while document.getElementsByClassName() returns NodeList object(Collection of Elements or Nodes?) ...
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Adding a parameter to the URL with JavaScript

...sed solution, but that depends completely on the length of the querystring and the index of any match the slow regex method I benchmarked against for completions sake (approx +150% slower) function insertParam2(key,value) { key = encodeURIComponent(key); value = encodeURIComponent(value); ...
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How do I choose between Semaphore and SemaphoreSlim?

... documentation states that the SemaphoreSlim is a lightweight alternative and doesn't use Windows Kernel semaphores. This resource states that the SemaphoreSlim is much faster. In what situations does the SemaphoreSlim make more sense over the Semaphore and vice versa? ...
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Pure JavaScript Graphviz equivalent [closed]

...y embed Graphviz into my Node server as an extension, or even popen() it and stream over graph information in the .dot format. ...
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Is there a performance difference between i++ and ++i in C++?

We have the question is there a performance difference between i++ and ++i in C? 17 Answers ...