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Rails: Using greater than/less than with a where statement
I'm trying to find all Users with an id greater than 200, but I'm having some trouble with the specific syntax.
9 Answers
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Programmatically Lighten or Darken a hex color (or rgb, and blend colors)
...g(16).slice(1,f?undefined:-2)
}
Usage:
// Setup:
let color1 = "rgb(20,60,200)";
let color2 = "rgba(20,60,200,0.67423)";
let color3 = "#67DAF0";
let color4 = "#5567DAF0";
let color5 = "#F3A";
let color6 = "#F3A9";
let color7 = "rgb(200,60,20)";
let color8 = "rgba(200,60,20,0.98631)";
// Tests:
/*...
How to fix .pch file missing on build?
When I build my c++ solution in Visual Studio it complains that the xxxxx.pch file is missing. Is there a setting I am missing to get the pre-compiled headers back?
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Black transparent overlay on image hover with only CSS?
...s will work:
.image { position: relative; border: 1px solid black; width: 200px; height: 200px; }
.image img { max-width: 100%; max-height: 100%; }
.overlay { position: absolute; top: 0; left: 0; right:0; bottom:0; display: none; background-color: rgba(0,0,0,0.5); }
.image:hover .overlay { display:...
What are bitwise shift (bit-shift) operators and how do they work?
...t; is not an operator, because it would be redundant.
Also note that C and C++ do not distinguish between the right shift operators. They provide only the >> operator, and the right-shifting behavior is implementation defined for signed types. The rest of the answer uses the C# / Java operat...
Log all requests from the python-requests module
...ctionpool:http://httpbin.org:80 "GET /get?foo=bar&baz=python HTTP/1.1" 200 366
Depending on the exact version of urllib3, the following messages are logged:
INFO: Redirects
WARN: Connection pool full (if this happens often increase the connection pool size)
WARN: Failed to parse headers (res...
Round a double to 2 decimal places [duplicate]
If the value is 200.3456 , it should be formatted to 200.34 .
If it is 200 , then it should be 200.00 .
13 Answers
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Which characters make a URL invalid?
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@Mark Amery it's analogous to saying C++ is a superset of C. It is for the most part but not entirely true because (URL and C) is much older they have to include behavior that is less strict. The problem is URL parsers will parse things that are not valid URI......
“var” or no “var” in JavaScript's “for-in” loop?
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is a commonly seen pattern but it's different from
for(int i; ...)
in C++ in that that the variable isn't scoped to the for block. In fact, the var gets hoisted to the top of the enclosing scope (function) so a local i will be effectively available both before the for loop (after the beginning...
vc/mfc *通配符 批量删除文件 - C/C++ - 清泛网 - 专注C/C++及内核技术
...'\0'也一样，笔者亲测，删除有时成功有时失败。
改用C++的FindNextFile，支持 * 通配符查找文件，核心代码如下：
WIN32_FIND_DATA FindFileData;
char szCurPath[MAX_PATH + 1] = { 0 };
GetCurrentDirectory(MAX_PATH, szCurPath);
CString findFileName;
findFileNam...