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The cause of “bad magic number” error when loading a workspace and how to avoid it?
I tried to load my R workspace and received this error:
9 Answers
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What's quicker and better to determine if an array key exists in PHP?
... if the value is NULL.
Whereas
isset() will return false if the key exist and value is NULL.
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Using TortoiseSVN via the command line
I want to use commandline SVN options. I use TortoiseSVN, and I run several commands and I get the following error.
12 Answ...
A command-line HTML pretty-printer: Making messy HTML readable [closed]
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Have a look at the HTML Tidy Project: http://www.html-tidy.org/
The granddaddy of HTML tools, with support for modern standards.
There used to be a fork called tidy-html5 which since became the official thing. Here is its GitHub repository.
Tidy is a console application for Mac OS X, Linu...
How to initialise a string from NSData in Swift
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Note that you don’t need to repeat “data” and “encoding” like that.
– jbg
Jul 7 '14 at 5:36
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GridCtrl 控件FAQ - C/C++ - 清泛网 - 专注C/C++及内核技术
...drop highlighted
GVIS_READONLY // Cell is read-only and cannot be edited
GVIS_FIXED // Cell is fixed
GVIS_FIXEDROW // Cell is part of a fixed row
GVIS_FIXEDCOL // Cell is part of a fixed column
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Format numbers in django templates
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@PawelRoman To avoid the loading of a bunch of filters and tags rarely used (and so make the template rendering faster)
– Maxime Lorant
May 18 '14 at 12:43
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How do you tell if a string contains another string in POSIX sh?
... ]]
then
echo "String2 present"
else
echo "Else"
fi
As an added bonus (and/or a warning, if your strings have any funny characters in them), =~ accepts regexes as the right operand if you leave out the quotes.
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ERROR 1130 (HY000): Host '' is not allowed to connect to this MySQL server [duplicate]
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Your root account, and this statement applies to any account, may only have been added with localhost access (which is recommended).
You can check this with:
SELECT host FROM mysql.user WHERE User = 'root';
If you only see results with loca...
Is there replacement for cat on Windows
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Windows type command works similarly to UNIX cat.
Example 1:
type file1 file2 > file3
is equivalent of:
cat file1 file2 > file3
Example 2:
type *.vcf > all_in_one.vcf
This command will merge all the vcards into one.
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