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Convert a list to a data frame
...
Update July 2020:
The default for the parameter stringsAsFactors is now default.stringsAsFactors() which in turn yields FALSE as its default.
Assuming your list of lists is called l:
df <- data.frame(matrix(unlist(l), nrow=length(l), byrow=T))
The above will convert a...
How to enable MySQL Query Log?
...og tables (see answer)
Enable Query logging on the database
(Note that the string 'table' should be put literally and not substituted by any table name. Thanks Nicholas Pickering)
SET global general_log = 1;
SET global log_output = 'table';
View the log
select * from mysql.general_log;
Dis...
Is there a way to add/remove several classes in one single instruction with classList?
... This is interesting to know, but all it does is to edit the string of the class. It wouldnt work if I wanted to remove several classes. Sorry, I forgot to add that in the OP.
– Enrique Moreno Tent
Jun 20 '12 at 9:09
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Find duplicate lines in a file and count how many time each line was duplicated?
...at does just the counting in a single pass using a prefix tree (in my case strings often have common prefixes) or similar, that should do the trick in O(n) * avg_line_len. Does anyone know such a commandline tool?
– Droggl
Nov 20 '13 at 17:27
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How do I recursively delete a directory and its entire contents (files + sub dirs) in PHP?
...nk()`, an E_WARNING level error will be generated on failure.
*
* @param string $source absolute path to directory or file to delete.
* @param bool $removeOnlyChildren set to true will only remove content inside directory.
*
* @return bool true on success; false on failure
*/
function rrmdir...
In Rails - is there a rails method to convert newlines to ?
...Helpers/TextHelper.html#method-i-simple_format
Example:
simple_format(mystring)
Note that simple_format allows basic HTML tags, but also passes text through sanitize which removes all scripts, so it should be safe for user input.
...
What is the difference between Integer and int in Java?
...bleValue);
Byte myByteValue = doubleObject.byteValue ();
String myStringValue = doubleObject.toString();
Primitive data types are store the fastest available memory where the Helper class is complex and store in heap memory.
reference from "David Gassner" Java Essential Training...
CKEditor automatically strips classes from div
...not a good idea...
config.allowedContent = true;
To play with a content string works fine for id, etc, but not for the class and style attributes, because you have () and {} for class and style filtering.
So my bet is for allowing any class in the editor is:
config.extraAllowedContent = '*(*)';...
What does this symbol mean in JavaScript?
...avaScript?
Why does JavaScript handle the plus and minus operators between strings and numbers differently?
|, &, ^, ~ — Single pipe, ampersand, circumflex, tilde: bitwise OR, AND, XOR, & NOT operators
What do these JavaScript bitwise operators do?
How to: The ~ operator?
Is there a ...
How to set entire application in portrait mode only?
...or example:
<activity android:name=".SomeActivity"
android:label="@string/app_name"
android:screenOrientation="portrait">
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