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Set time part of DateTime in ruby

Say I have a datetime object eg DateTime.now . I want to set hours and minutes to 0 (midnight). How can I do that? 4 Ans...
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Merge (with squash) all changes from another branch as a single commit

In Git, is there a way to merge all changes from one branch into another, but squash to a single commit at the same time? ...
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Lightweight SQL editor for Eclipse [closed]

Is there any simple SQL editor in Eclipse? Or do I need to find a simple SQL editor plugin for Eclipse? 6 Answers ...
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No IUserTokenProvider is registered

... You have to specify a UserTokenProvider to generate a token. using Microsoft.Owin.Security.DataProtection; using Microsoft.AspNet.Identity.Owin; // ... var provider = new DpapiDataProtectionProvider("SampleAppName"); var userManager = new UserManager<ApplicationUser>(new UserStor...
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Check if a string contains a string in C++

I have a variable of type std::string . I want to check if it contains a certain std::string . How would I do that? 12 ...
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What is the difference between re.search and re.match?

What is the difference between the search() and match() functions in the Python re module ? 8 Answers ...
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How can I select an element with multiple classes in jQuery?

... If you want to match only elements with both classes (an intersection, like a logical AND), just write the selectors together without spaces in between: $('.a.b') The order is not relevant, so you can also swap the classes: $('.b.a') So to match a div element that has an ID o...
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brew install mysql on macOS

I'm trying to setup up MySQL on mac os 10.6 using Homebrew by brew install mysql 5.1.52 . 16 Answers ...
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Is calculating an MD5 hash less CPU intensive than SHA family functions?

Is calculating an MD5 hash less CPU intensive than SHA-1 or SHA-2 on "standard" laptop x86 hardware? I'm interested in general information, not specific to a certain chip. ...
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In javascript, is an empty string always false as a boolean?

in javascript, 5 Answers 5 ...