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What is the difference between require_relative and require in Ruby?

...relative: VALUE rb_f_require_relative(VALUE obj, VALUE fname) { VALUE base = rb_current_realfilepath(); if (NIL_P(base)) { rb_loaderror("cannot infer basepath"); } base = rb_file_dirname(base); return rb_require_safe(rb_file_absolute_path(fname, base), rb_safe_level()); ...
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What is the best data type to use for money in C#?

... make Currency a class so I can define an exchange rate (in relation to a "base currency", often the US dollar [which I set to have an exchange rate of 1.00]). – Thomas Owens Mar 28 '09 at 20:25 ...
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使用std::string作为std::map的key出错解决 - C/C++ - 清泛网 - 专注C/C++及内核技术

...ef(180): error C2784: “bool std::operator <(const std::_Revranit<_RanIt,_Base> &,const std::_Revranit<_RanIt2,_Base2> &)”: 未能从“const std::string”为“const std::_Revranit<_RanIt,_Base> &”推导 模板 参数 1> c:\program files (x86)\microsoft visual studio 11.0\vc\include...
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Concept behind these four lines of tricky C code

...The number 7709179928849219.0 has the following binary representation as a 64-bit double: 01000011 00111011 01100011 01110101 01010011 00101011 00101011 01000011 +^^^^^^^ ^^^^---- -------- -------- -------- -------- -------- -------- + shows the position of the sign; ^ of the exponent, and - of t...
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JavaScript data grid for millions of rows [closed]

...ibman/SlickGrid DataTables http://www.datatables.net/index ShieldUI http://demos.shieldui.com/web/grid-virtualization/performance-1mil-rows My best 3 options are jqGrid, jqxGrid and DataTables. They can work with thousands of rows and support virtualization. ...
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How to format numbers? [duplicate]

...umber of decimal places?" /&gt; I'll update with an in-page snippet demo shortly, but for now here is a fiddle: https://jsfiddle.net/bv2ort0a/2/ Old Method Why use RegExp for this? — don't use a hammer when a toothpick will do i.e. use string manipulation: var formatThousands = functi...
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How can I use an http proxy with node.js http.Client?

...' const auth = 'Basic ' + Buffer.from(username + ':' + password).toString('base64') http.request({ host: '255.255.255.255', // IP address of proxy server port: 99999, // port of proxy server method: 'CONNECT', path: 'kinopoisk.ru:443', // some destination, add 443 port for https! headers:...
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Proper way to declare custom exceptions in modern Python?

...r(Exception): def __init__(self, message, errors): # Call the base class constructor with the parameters it needs super(ValidationError, self).__init__(message) # Now for your custom code... self.errors = errors That way you could pass dict of error messages t...
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What is the most pythonic way to check if an object is a number?

...re multiplying a vector by X. In this case you want to do different things based on what X is. (It might act as something that multiplies, but the result might be nonsensical.) – Evgeni Sergeev May 2 '15 at 5:34 ...
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How to install psycopg2 with “pip” on Python?

... Worked on AWS EC2, with RHEL-based 64bit Amazon Linux/2.5.1 – Ben Wheeler Sep 8 '17 at 19:33 ...