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Finding sum of elements in Swift array

...o) { $0 + $1[keyPath: keyPath] } } } Usage: struct Product { let id: String let price: Decimal } let products: [Product] = [.init(id: "abc", price: 21.9), .init(id: "xyz", price: 19.7), .init(id: "jkl", price: 2.9) ] products.sum(\.pr...
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Yellow fade effect with JQuery

... have tried in my code but does not do anything. Do I need to download any extra. It says dependencies: Effects Core. It is this another plugin. – Sergio del Amo May 11 '09 at 16:19 ...
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Hidden features of Scala

... "Hello, world") The right hand expression creates a Tuple3[Int, Double, String] which can match the pattern (a, b, c). Most of the time your patterns use extractors that are members of singleton objects. For example, if you write a pattern like Some(value) then you're implicitly calling the ...
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How to get key names from JSON using jq

... cat input.json | jq -r 'keys' From jq help: -r output raw strings, not JSON texts; share | improve this answer | follow | ...
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Good reasons NOT to use a relational database?

...eters because business users can simply look at them and edit them without extra tools. Text files are great for write-once/read-almost-never applications like logging. To pick an approach you need to figure out what you're trying to accomplish – O. Jones Jul 1...
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How to bind function arguments without binding this?

...ound to bar, while the context obj specified in the invocation is used and extra arguments are appended after the bound arguments. The return value is simply forwarded. share | improve this answer ...
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Android Fragments. Retaining an AsyncTask during screen rotation or configuration change

...ain, in another instance of this fragment after rotation. static final String TASK_FRAGMENT_TAG = "task"; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // At this point the fragment may have been recreated due to a r...
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What's the difference between URI.escape and CGI.escape?

...ll it depends on what you need to do. URI.escape was supposed to encode a string (URL) into, so called, "Percent-encoding". CGI::escape is coming from the CGI spec, which describes how data should be encoded/decode between web server and application. Now, let's say that you need to escape a URI ...
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How to mock ConfigurationManager.AppSettings with moq

...ic void TestSomething() { using(ShimsContext.Create()) { const string key = "key"; const string value = "value"; ShimConfigurationManager.AppSettingsGet = () => { NameValueCollection nameValueCollection = new NameValueCollection(); nameV...
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Modify request parameter with servlet filter

... are the characters allowed by the Javascript validation */ static String allowedChars = "+-0123456789#*"; public FilteredRequest(ServletRequest request) { super((HttpServletRequest)request); } public String sanitize(String input) { String re...