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How can I find all of the distinct file extensions in a folder hierarchy?
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Powershell:
dir -recurse | select-object extension -unique
Thanks to http://kevin-berridge.blogspot.com/2007/11/windows-powershell.html
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impr...
Are email addresses case sensitive?
...eudocode:
if (user.paidEmailFee) {
// case sensitive email
query = "select * from users where email LIKE ' + user.email + '"
} else {
// case insensitive email
query = "select * from users where email ILIKE ' + user.email + '"
}
This way, you are mostly enforcing case insensitivity bu...
Undefined symbols for architecture arm64
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Just came in here to add to the chorus: selecting YES for BUILD FOR ACTIVE ARCHITECTURES is the best option here.
– Wells
Mar 28 '14 at 20:35
56
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How to create REST URLs without verbs?
...e 301 redirects from the one you don't use
Do use query parameters for sub-selection of a resource; i.e. pagination, search queries
Do move stuff out of the URI that should be in an HTTP header or a body
(Note: I did not say "RESTful URI design"; URIs are essentially opaque in REST.)
General prin...
Why do we need message brokers like RabbitMQ over a database like PostgreSQL?
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PostgreSQL 9.5
PostgreSQL 9.5 incorporates SELECT ... FOR UPDATE ... SKIP LOCKED. This makes implementing working queuing systems a lot simpler and easier. You may no longer require an external queueing system since it's now simple to fetch 'n' rows that no other sess...
GUI not working after rewriting to MVC
...he Model manages a single Piece, chosen at random. In response to a user's selection, the View invokes the check() method, while listening for a response from the Model via update(). The View then updates itself using information obtained from the Model. Similarly, the Controller may reset() the Mod...
Does it make any sense to use inline keyword with templates?
...s, multiple equivalent definitions may be passed to the linker, which will select one). That, not inlining, is the real function of the inline keyword.
– Ben Voigt
Jul 10 '12 at 21:12
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Rich vs Anemic Domain Model [closed]
...or example, if you pass Order to view, then you can use needToDeliver() of selected Order to display list of items to be confirmed by user before they click on save button to persist the Order.
Responding To Comment
This is how I use the domain class from controller:
def save = {
Order order =...
In Django, how does one filter a QuerySet with dynamic field lookups?
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A simplified example:
In a Django survey app, I wanted an HTML select list showing registered users. But because we have 5000 registered users, I needed a way to filter that list based on query criteria (such as just people who completed a certain workshop). In order for the survey eleme...
What is the advantage to using bloom filters?
...riefly tell the basics.
you initiate an empty bit array of length m
you select k different hash functions (the more independent the better)
if you want to add element, you calculate all the k hashes of this value and set the corresponding bits to 1
if you want to check if element exist, you also ...