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How to determine if object is in array [duplicate]

...(In fact, using lodash, this whole solution becomes a one-liner, combining _.some and _.isEqual: _.some(list, v => _.isEqual(v, o)).) – cdhowie Dec 23 '19 at 18:34 ...
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Using CookieContainer with WebClient class

... limited functionalty. Before I knew about this option, I wrote lots of really painful code at the HttpWebRequest layer because WebClient almost, but not quite, did what I needed. Derivation is much easier. Another option is to use the regular WebClient class, but manually populate the Cookie he...
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How to create a fixed-size array of objects

... Fixed-length arrays are not yet supported. What does that actually mean? Not that you can't create an array of n many things — obviously you can just do let a = [ 1, 2, 3 ] to get an array of three Ints. It means simply that array size is not something that you can declare as type inf...
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Factory pattern in C#: How to ensure an object instance can only be created by a factory class?

...some check before creating an object, probably in its constructor. This is all okay until I decide I want to make this check be a part of the business logic. So, how can I arrange for a business object to be creatable only through some method in my business logic class but never directly? The first ...
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How to do URL decoding in Java?

... { String result = java.net.URLDecoder.decode(url, StandardCharsets.UTF_8.name()); } catch (UnsupportedEncodingException e) { // not going to happen - value came from JDK's own StandardCharsets } Java 10 added direct support for Charset to the API, meaning there's no need to catch Unsuppor...
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What does && mean in void *p = &&abc;

... @Lundin: Same can be said of most compilers. __forceinline? __declspec(naked)? One of my favourite MSVCisms is: template<typename T> class X { friend T; }, which is invalid C++03. – Sebastian Mach Aug 17 '12 at 8:20 ...
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Suppressing “is never used” and “is never assigned to” warnings in C#

I have a HTTPSystemDefinitions.cs file in C# project which basically describes the older windows ISAPI for consumption by managed code. ...
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DistutilsOptionError: must supply either home or prefix/exec-prefix — not both

I've been usually installed python packages through pip. 8 Answers 8 ...
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Is there any particular difference between intval and casting to int - `(int) X`?

... behavior is a little surprising given the fact that the function theoretically can do base conversion. It definitely tripped me up before, but perhaps I just need to RTFM a bit more carefully :) – t-dub Feb 10 '12 at 17:07 ...
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New features in java 7

...OutputStream(dest)) { // code } Underscores in numeric literals int one_million = 1_000_000; Strings in switch String s = ... switch(s) { case "quux": processQuux(s); // fall-through case "foo": case "bar": processFooOrBar(s); break; case "baz": processBaz(s); ...