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How to execute XPath one-liners from shell?
...bute' file.xml
xmlstarlet sel -t -v "//element/@attribute" file.xml
xpath -q -e '//element/@attribute' file.xml
xidel -se '//element/@attribute' file.xml
saxon-lint --xpath '//element/@attribute' file.xml
xmlstarlet page
man xmllint
xpath page
xml_grep
xidel
saxon-lint
.
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How to avoid isset() and empty()
...t write a function for that. Something like:
function get_string($array, $index, $default = null) {
if (isset($array[$index]) && strlen($value = trim($array[$index])) > 0) {
return get_magic_quotes_gpc() ? stripslashes($value) : $value;
} else {
return $default;
...
Installing older version of R package
...oint', 'devtools'), c('0.3.3', '1.6.1'))
That has the advantage of not requiring Rtools to install binary packages on Windows, but only works going back to 2014-09-17 (when MRAN was launched).
To install an older version from the command line (outside of R):
You can also install a package by usi...
@UniqueConstraint and @Column(unique = true) in hibernate annotation
...
@jDub9 You cannot query an index. You can query the mask and group columns, in one query, and it will use that index for faster processing (if you are lucky), but you cannot simply query an index.
– Dalibor Filus
...
WordPress is giving me 404 page not found for all pages except the homepage
...ded Modules' section.
If it's not, enable it - Look at your apache default index.html file for details - in Ubuntu, you do it with the helper a2enmod.
Verify that apache server is looking at the .htaccess file. open httpd.conf - or it's Ubuntu's alternative, /etc/apache2/apache2.conf. In it, You sho...
reducing number of plot ticks
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Only select first 3 datetime index. when get ax from pandas.DataFrame.plot ax = df.plot()
– Mithril
Nov 1 '19 at 2:27
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C# Java HashMap equivalent
...p.put(key, value)
MyObject value = myMap.get(key)
C#'s Dictionary uses [] indexing for setting/getting items
myDictionary[key] = value
MyObject value = myDictionary[key]
null keys
Java's HashMap allows null keys
.NET's Dictionary throws an ArgumentNullException if you try to add a null key
A...
Find running median from a stream of integers
... elements to all be stored in memory). See below for another answer using indexable skiplists that only requires the most recently seen 100 elements be kept in memory.
– Raymond Hettinger
May 22 '12 at 5:42
...
Rename column SQL Server 2008
...From the documentation:
sp_rename automatically renames the associated index whenever a PRIMARY KEY or UNIQUE constraint is renamed. If a renamed index is tied to a PRIMARY KEY constraint, the PRIMARY KEY constraint is also automatically renamed by sp_rename. sp_rename can be used to rename prim...
jQuery Determine if a matched class has a given id
... //do something with bar
});
I'm glad you solved your problem with index(), what ever works for you.I hope this will help others with the same problem. Cheers :)
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