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Is quoting the value of url() really necessary?
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The W3C says quotes are optional, all three of your ways are legal.
Opening and closing quote just need to be the same character.
If you have special characters in your URL, you should use quotes or escape the characters (see b...
Should I delete the cgi-bin folder in a subdomain I just created?
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answered Feb 23 '10 at 20:56
janmoesenjanmoesen
7,28011 gold badge2020 silver badges1717 bronze badges
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Append value to empty vector in R?
...length(values)) vector[i] <- values[i] )
# user system elapsed
# 0.340 0.000 0.343
vector <- character(length(values))
# fast(er)
system.time( for (i in 1:length(values)) vector[i] <- values[i] )
# user system elapsed
# 0.024 0.000 0.023
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How can I remove the outline around hyperlinks images?
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Andrew Barber
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answered Feb 14 '11 at 16:25
DiscoverDisc...
Linux bpftrace学习笔记（持续更新） - 操作系统(内核) - 清泛网移动版 - ...
...bpftrace-install。1、查看程序在打开哪些文件： bpftrace -e & 39;tracepoint:syscalls:sys_enter_open { printf("%s %s n
图：BPF性能工具及其可见性
bpftrace安装请参考：bpftrace-install 。
1、查看哪些程序（如head,tail）正在打开什么文件：
# bpf...
SVN how to resolve new tree conflicts when file is added on two branches
...ocal obstruction, incoming add upon merge' variety. Fixed expectations in r35341.
(This is also called "evil twins" in ClearCase by the way):
a file is created twice (here "added" twice) in two different branches, creating two different histories for two different elements, but with the same name.
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IEnumerable vs List - What to Use? How do they work?
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edited Nov 22 '15 at 20:53
Amirhossein Mehrvarzi
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How to allow keyboard focus of links in Firefox?
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doppelgreener
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answered Jul 29 '12 at 22:27
BenBen
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Remove last character of a StringBuilder?
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edited Jun 14 '16 at 3:48
Tyler
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answered Aug 3 '...
Type or namespace name does not exist [closed]
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answered Aug 23 '11 at 1:52
Nathan KoopNathan Koop
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