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How to sum array of numbers in Ruby?
...t(0){|sum,x| sum + x }
See Ruby's Enumerable Documentation
(note: the 0 base case is needed so that 0 will be returned on an empty array instead of nil)
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demystify Flask app.secret_key
...etc.
>>> if not good_cookie:
... security_log(cookie)
Hash-based Message Authentication Code (HMAC)
The type of signature generated above that requires a secret key to ensure the integrity of some contents is called in cryptography a Message Authentication Code or MAC.
I specified ...
.rar, .zip files MIME Type
...C code to get the mime type for a file URL. I've created a Swift extension based on that Objective-C code to get the mime type:
import Foundation
import MobileCoreServices
extension URL {
var mimeType: String? {
guard self.pathExtension.count != 0 else {
return nil
...
C# properties: how to use custom set property without private field?
... 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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Which is the correct C# infinite loop, for (;;) or while (true)? [closed]
...nds of one another. Adam's follow-up comment led me to accepting an answer based on usage rather than convention.
– Bob Kaufman
Sep 9 '09 at 18:30
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How can I convert comma separated string into a List
...turns a list with integers: 1, 2, 3, 4, 5
EDIT: Here is an updated query based on feedback by Antoine. It calls TryParse first to filter out any bad values, and then Parse to do the actual conversion.
string csv = "1,2,3,4,a,5,0,3,r,5";
int mos = 0;
var intList = csv.Split(',')
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What's the difference between ViewData and ViewBag?
...out? People blame when they don't see the full picture. I imagine you have basecontrollers and base view models or static/singletons objects everywhere. Guess what, better learn to use view data and blame yourself for using the wrong tool for the job.
– Bart Calixto
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SQLAlchemy: how to filter date field?
...deally one should use the proper data type for parameters. However all databases understand also the ISO 8601 format for dates, which also happens to be lexicographical order. For this reason for simple examples i generally use ISO formatted dates - easier to read.
– van
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MongoDB not equal to
... 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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How To Create Table with Identity Column
...ybe not. I've been in situations where I've taken the script from one database, used it on another server, and the defaults that worked in one place were not best for the other. In any case, I only suggested this as a solution since it seems simpler to me (I personally understand the "primary key"...