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execJs: 'Could not find a JavaScript runtime' but execjs AND therubyracer are in Gemfile
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18 Answers
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How can I find out if I have Xcode commandline tools installed?
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162
/usr/bin/xcodebuild -version
will give you the xcode version, run it via Terminal command
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How to calculate an angle from three points? [closed]
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16 Answers
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Using [UIColor colorWithRed:green:blue:alpha:] doesn't work with UITableView seperatorColor?
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You need to divide by 255.0
Because I hardly ever use values between 1.0 and 0.0, I created a ...
Nginx url重写rewrite实例详解 - 更多技术 - 清泛网移动版 - 专注C/C++及内核技术
...rewrite在nginx中实现url重写，学习rewrite的具体用法，包括301重定向的内容等，希望对大家有所帮助。nginx rewrite 实现二级域名跳转
当访问http://www.jbyuan.com跳转到http://www.jbyuan.com/nvxingjiankang/
方法一：
这种方法浏览器地址会变www.j...
Pagination on a list using ng-repeat
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If you have not too much data, you can definitely do pagination by just storing all the data in...
What is more efficient? Using pow to square or just multiply it with itself?
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std::cout << elapsed << " "; \
\
return x; \
}
TEST(1, b)
TEST(2, b*b)
TEST(3, b*b*b)
TEST(4, b*b*b*b)
TEST(5, b*b*b*b*b)
template <int exponent>
double testpow(double base, long loops)
{
double x = 0.0;
boost::posix_time::ptime startTime = now();
for (long...
What does the (unary) * operator do in this Ruby code?
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The * is the splat operator.
It expands an Array into a list of arguments, in this case a list ...
oh-my-zsh slow, but only for certain Git repo
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You can add this to your git config and zsh won't check the status anymore
git config --add...
What's the best practice to round a float to 2 decimals? [duplicate]
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I was working with statistics in Java 2 years ago and I still got the codes of a function that...