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Rails: Logging the entire stack trace of an exception
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208
If you look at the source for the BufferedLogger class in ActiveSupport, you'll see that the se...
How to get last inserted row ID from WordPress database?
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answered Oct 16 '09 at 2:04
jsnfwlrjsnfwlr
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Sorting data based on second column of a file
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Matt RyallMatt Ryall
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Static member initialization in a class template
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edited Jul 12 '10 at 17:07
answered Jul 12 '10 at 15:48
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C# convert int to string with padding zeros?
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i.ToString().PadLeft(4, '0') - okay, but doesn't work for negative numbers
i.ToString("0000"); - explicit form
i.ToString("D4"); - short form format specifier
$"{i:0000}"; - string interpolation (C# 6.0+)
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Conditionally Remove Dataframe Rows with R [duplicate]
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Logic index:
d<-d[!(d$A=="B" & d$E==0),]
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CSS3滚动条美化效果 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...sparent;
}
::-webkit-scrollbar-track {
box-shadow: 1px 1px 5px rgba(0,0,0,.2) inset;
}
::-webkit-scrollbar-thumb {
min-height: 20px;
background-clip: content-box;
box-shadow: 0 0 0 5px rgba(0,0,0,.2) inset;
}
::-webkit-scrollbar-corner {
background: transparent;
}
如...
css中@media screen and (-webkit-min-device-pixel-ratio:0)解析 - 更多技...
css中@media screen and (-webkit-min-device-pixel-ratio:0)解析@media screen and (-webkit-min-device-pixel-ratio:0) {.down_info caption h5{height:60px; line-height:60px;}}Webkit内核浏览...
@media screen and (-webkit-min-device-pixel-ratio:0) {
.down_info caption h5{height:60px; line-height:60...
...%: %> - is short-hand for Response.Write(Server.HTMLEncode()) ASP.net 4.0+
<%#: %> - is used for data binding expressions and is automatically HTMLEncoded.
<%-- --%> - is for server-side comments
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Java: Literal percent sign in printf statement
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200
The percent sign is escaped using a percent sign:
System.out.printf("%s\t%s\t%1.2f%%\t%1.2f%%\...