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Match multiline text using regular expression
...ole string but it can't as \\W matches a non word character, ie [^a-zA-Z0-9_] and the first character is T, a word character.
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What does “for” attribute do in HTML tag?
... is focusing on first element. <html> <body> <div id="first_div"> <label for="name">Name</label> <input type="text" id="name"> </div> <div id="second_div"> <label for="name">Name</label> <input type="text" id="name"> </div>...
How to create an HTML button that acts like a link?
...open the link in a new window/tab use: onclick="window.open('example.com','_blank');"
– bennos
Jun 16 '14 at 11:02
4
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How to read a .xlsx file using the pandas Library in iPython?
...
I usually create a dictionary containing a DataFrame for every sheet:
xl_file = pd.ExcelFile(file_name)
dfs = {sheet_name: xl_file.parse(sheet_name)
for sheet_name in xl_file.sheet_names}
Update: In pandas version 0.21.0+ you will get this behavior more cleanly by passing sheet_na...
Best way to get child nodes
...odes to get NodeList, then make an array of all nodes with nodeType ELEMENT_NODE.
/**
* Return direct children elements.
*
* @param {HTMLElement}
* @return {Array}
*/
function elementChildren (element) {
var childNodes = element.childNodes,
children = [],
i = childNodes.len...
Should I use an exception specifier in C++?
...t really know what it might do when something goes horribly wrong.
int lib_f();
void g() throw( k_too_small_exception )
{
int k = lib_f();
if( k < 0 ) throw k_too_small_exception();
}
g will terminate, when lib_f() throws. This is (in most cases) not what you really want. std::terminat...
A JRE or JDK must be available in order to run Eclipse. No JVM was found after searching the followi
...ioned in "FAQ How do I run Eclipse?":
Eclipse DOES NOT consult the JAVA_HOME environment variable.
So I would check your $PATH, starting by n new shell sesion (whatever your OS is), typing 'java -version' to see if it still returns anything.
...
How do I copy a version of a single file from one git branch to another?
...heckout otherbranch myfile.txt
General formulas:
git checkout <commit_hash> <relative_path_to_file_or_dir>
git checkout <remote_name>/<branch_name> <file_or_dir>
Some notes (from comments):
Using the commit hash you can pull files from any commit
This works for f...
How to check if the user can go back in browser history or not
...
Does not work if a window was opened with target="_blank" to force a new window. The back button on the browser won't work, but there will be a document.referrer
– Mike_K
Mar 26 '13 at 15:54
...
Android custom dropdown/popup menu
...To create a popup menu in android with Java:
Create a layout file activity_main.xml under res/layout directory which contains only one button.
Filename: activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/to...