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git: 'credential-cache' is not a git command

...se instructions to the letter, including the part about password caching. It seems like the instructions are wrong, because every time I git push origin master I get this error: ...
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Why does my application spend 24% of its life doing a null check?

I've got a performance critical binary decision tree, and I'd like to focus this question on a single line of code. The code for the binary tree iterator is below with the results from running performance analysis against it. ...
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Using reCAPTCHA on localhost

I'm developing a website using PHP and I want to make a human verification in one of the sessions. For the development, I'm initially running the system locally and when it is ready, I'm gonna make put it on in a certain domain. ...
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Why do we need fibers

... never use directly in application-level code. They are a flow-control primitive which you can use to build other abstractions, which you then use in higher-level code. Probably the #1 use of fibers in Ruby is to implement Enumerators, which are a core Ruby class in Ruby 1.9. These are incredibly u...
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How to let PHP to create subdomain automatically for each user?

How do I create subdomain like http://user.mywebsite.com ? Do i have to access htaccess somehow? Is it actually simply possible to create it via pure php code or I need to use some external script-server side language? ...
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How can I remove a character from a string using Javascript?

I am so close to getting this, but it just isn't right. All I would like to do is remove the character r from a string. The problem is, there is more than one instance of r in the string. However, it is always the character at index 4 (so the 5th character). ...
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Parse RSS with jQuery

I want to use jQuery to parse RSS feeds. Can this be done with the base jQuery library out of the box or will I need to use a plugin? ...
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How to pass password to scp?

I know it is not recommended, but is it at all possible to pass the user's password to scp? 17 Answers ...
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What should main() return in C and C++?

... The return value for main indicates how the program exited. Normal exit is represented by a 0 return value from main. Abnormal exit is signaled by a non-zero return, but there is no standard for how non-zero codes are interpreted. As noted by others, void main() is prohibited by...
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How do you reverse a string in place in JavaScript?

How do you reverse a string in place (or in-place) in JavaScript when it is passed to a function with a return statement, without using built-in functions ( .reverse() , .charAt() etc.)? ...