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Contains method for a slice

...re with map[string] struct{}. map[string] struct{} seems like a hack especially initializing an empty struct struct {}{} – vadasambar Sep 12 '19 at 12:17 ...
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Node.js create folder or use existing

... Good way to do this is to use mkdirp module. $ npm install mkdirp Use it to run function that requires the directory. Callback is called after path is created or if path did already exists. Error err is set if mkdirp failed to create directory path. var mkdirp = require('mkdir...
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How to print instances of a class using print()?

...(t) member of Test The __str__ method is what happens when you print it, and the __repr__ method is what happens when you use the repr() function (or when you look at it with the interactive prompt). If this isn't the most Pythonic method, I apologize, because I'm still learning too - but it works...
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Convert Python dictionary to JSON array

...our script. # -*- coding: UTF-8 -*- This will fix some Unicode problems and make your life easier. share | improve this answer | follow | ...
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RichTextBox (WPF) does not have string property “Text”

... @alvinmeimoun Actually, Paragraph() had a Paragraph(Inline) overload at least since .NET 3.5 (and Run(string) was also valid - it's even in the example). – Dragomok Jan 6 '17 at 9:57 ...
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Call UrlHelper in models in ASP.NET MVC

I need to generate some URLs in a model in ASP.NET MVC. I'd like to call something like UrlHelper.Action() which uses the routes to generate the URL. I don't mind filling the usual blanks, like the hostname, scheme and so on. ...
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Automatically capture output of last command into a variable using Bash?

... This is a really hacky solution, but it seems to mostly work some of the time. During testing, I noted it sometimes didn't work very well when getting a ^C on the command line, though I did tweak it a bit to behave a bit better. This...
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Converting JavaScript object with numeric keys into array

... It's actually very straight forward with jQuery's $.map var arr = $.map(obj, function(el) { return el }); FIDDLE and almost as easy without jQuery as well, converting the keys to an array and then mapping back the values with Arra...
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Get all unique values in a JavaScript array (remove duplicates)

...l loop through the array and leave only those entries that pass the given callback function onlyUnique. onlyUnique checks, if the given value is the first occurring. If not, it must be a duplicate and will not be copied. This solution works without any extra library like jQuery or prototype.js. It w...
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How to delete migration files in Rails 3

... I usually: Perform a rake db:migrate VERSION=XXX on all environments, to the version before the one I want to delete. Delete the migration file manually. If there are pending migrations (i.e., the migration I removed was not the...