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How to convert a string or integer to binary in Ruby?
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You have Integer#to_s(base) and String#to_i(base) available to you.
Integer#to_s(base) converts a decimal number to a string representing the number in the base specified:
9.to_s(2) #=> "1001"
while the reverse is obtained with String#to_i(...
.NET: Which Exception to Throw When a Required Configuration Setting is Missing?
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The ConfigurationElement class (which is the base class of many config-related classes, like ConfigurationSection) has a method called OnRequiredPropertyNotFound (there are other helper methods too). You can maybe call those.
The OnRequiredPropertyNotFound is implemen...
Check if pull needed in Git
...reduce it to a yes/no answer. However, if you're prepared to do a pull --rebase then you can treat "local is behind" and "local has diverged" as "need to pull", and the other two as "don't need to pull".
You can get the commit id of any ref using git rev-parse <ref>, so you can do this for ma...
@RequestParam vs @PathVariable
...query parameter(static values) like: http://localhost:8080/calculation/pow?base=2&ext=4
@PathVariable is use for dynamic values like : http://localhost:8080/calculation/sqrt/8
@RequestMapping(value="/pow", method=RequestMethod.GET)
public int pow(@RequestParam(value="base") int base1, @Request...
SQL JOIN and different types of JOINs
...re similar, if you are not bothered which is the primary table the join is based on.
– Anup
Oct 12 '14 at 11:37
2
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Filter element based on .data() key/value
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Returning 'IList' vs 'ICollection' vs 'Collection'
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IList<T> is essentially an ICollection<T> with random order-based access.
In this case you should decide whether or not your results require list semantics such as order based indexing (then use IList<T>) or whether you just need to return an unordered "bag" of results (then us...
g++ undefined reference to typeinfo
... in my case because of a missing virtual destructor implementation in some base class.
– chmike
Jul 10 '13 at 14:24
1
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What are important languages to learn to understand different approaches and concepts? [closed]
...is on the upswing and will only continue to grow in the future.
Prototype-based, JavaScript / Io / Self - Self is the grand-daddy and highly influential on every prototype-based language. This is not the same as class-based OOP and shouldn't be treated as such. Many people come to a prototype lan...
Add new methods to a resource controller in Laravel
...urceful route.
*
* @param string $name
* @param string $base
* @param string $controller
* @return void
*/
protected function addResourceDelete($name, $base, $controller)
{
$uri = $this->getResourceUri($name).'/{'.$base.'}/destroy';
ret...