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How do short URLs services work?
...f existence of all url shortening services it should last another 20 years minimum till adding third symbol.
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Leading zeros for Int in Swift
...er digits:
import Foundation
let formatter = NumberFormatter()
formatter.minimumIntegerDigits = 2
let optionalString0 = formatter.string(from: 0) // returns Optional("00")
let optionalString1 = formatter.string(from: 1) // returns Optional("01")
let optionalString2 = formatter.string(from: 10) //...
Rails Model, View, Controller, and Helper: what goes where?
...n't. Keep your controllers skinny.
View: The view should only contain the minimum code to display your data (Model), it shouldn't do lots of processing or calculating, it should be displaying data calculated (or summarized) by the Model, or generated from the Controller. If your View really needs t...
How to show particular image as thumbnail while implementing share on Facebook?
...ilable image that meets the criteria on the page. Another fact is that the minimum required is to include the 3 metas that Facebook requires for the og:image to take effect:
<meta property="og:title" content="Title of the page" />
<!-- NEXT LINE Even if page is dynamically generated and UR...
Basic HTTP authentication with Node and Express 4
... other hand, if you only ever use one or very few logins, this is the bare minimum you need: (you don't even need to parse the credentials at all)
function (req, res) {
//btoa('yourlogin:yourpassword') -> "eW91cmxvZ2luOnlvdXJwYXNzd29yZA=="
//btoa('otherlogin:otherpassword') -> "b3RoZXJsb2dpb...
How can I view all the git repositories on my machine?
...ht the .git/config file was necessary, turns out it's not, so the absolute minimum git init newrepo is
mkdir -p newrepo/.git/{objects,refs}
echo ref: refs/heads/master >newrepo/.git/HEAD
)
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Spring Boot: How can I set the logging level with application.properties?
...the external file.
These are different logging levels and its order from minimum << maximum.
OFF << FATAL << ERROR << WARN << INFO << DEBUG << TRACE << ALL
# To set logs level as per your need.
logging.level.org.springframework = debug
logging.leve...
Inline functions vs Preprocessor macros
...-O3) compiler will choose to inline many functions, but when you build for minimum size (-Os) if will typically inline functions called only once (or very small functions). With macros there is no such choice.
– dbrank0
Nov 14 '12 at 8:56
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from list of integers, get number closest to a given value
...e could use the built-in min() function, to find the element which has the minimum distance from the specified number.
>>> min(myList, key=lambda x:abs(x-myNumber))
4
Note that it also works with dicts with int keys, like {1: "a", 2: "b"}. This method takes O(n) time.
If the list is a...
Set EditText cursor color
...ties.
Update: this way only works on API 21+
Update 2: I'm not sure the minimum android version that it can work. Tested by android version:
2.3.7 - didn't work
4.4.4 - worked
5.0 - worked
5.1 - worked
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