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How to get all properties values of a JavaScript Object (without knowing the keys)?

... var val = obj[keys[i]]; // use val } If you want something a little more compact or you want to be careful with functions in loops, then Array.prototype.forEach is your friend: Object.keys(obj).forEach(function (key) { var val = obj[key]; // use val }); The next method builds an ar...
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How do I remove all HTML tags from a string without knowing which tags are in it?

...re that this solution has its own flaw. See Remove HTML tags in String for more information (especially the comments of @mehaase) Another solution would be to use the HTML Agility Pack. You can find an example using the library here: HTML agility pack - removing unwanted tags without removing conte...
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How do I find the duplicates in a list and create another list with them?

... a: if x not in seen: uniq.append(x) seen.add(x) or, more concisely: seen = set() uniq = [x for x in a if x not in seen and not seen.add(x)] I don't recommend the latter style, because it is not obvious what not seen.add(x) is doing (the set add() method always returns ...
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Standard concise way to copy a file in Java?

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Access to Modified Closure (2)

...d, and specifically in the case of foreach, you do not need to do this any more: the code in the question would work as expected. To show this not working without this change, consider the following: string[] names = { "Fred", "Barney", "Betty", "Wilma" }; using (Form form = new Form()) { fore...
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Get query from java.sql.PreparedStatement [duplicate]

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What generates the “text file busy” message in Unix?

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Generate full SQL script from EF 5 Code First Migrations

...re and ended up here like me, the command is: dotnet ef migrations script. More on documentation: docs.microsoft.com/en-us/ef/core/managing-schemas/migrations/… – Rafael Miceli Mar 6 '18 at 19:28 ...
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Why is “if not someobj:” better than “if someobj == None:” in Python?

...ists, dicts, strs, unicodes, ints, floats, etc. have a nonzero. It is much more common to rely on the truth value of built-in type than to rely on a custom nonzero method. – ddaa Sep 19 '08 at 11:32 ...
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What's the best way to check if a file exists in C?

... [...continuing...] Rather more esoterically, on POSIX systems, access() checks whether the real UID and real GID, rather than the effective UID and effective GID. This only matters to setuid or setgid programs, but then it matters intensely as it may...