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Adding new column to existing DataFrame in Python pandas
... because if you have multiple rows, and you use the assignment, it assigns all rows of the new column with that value ( in your case e) which is usually undesirable.
– Paniz
Apr 27 '19 at 22:42
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Global variables in Javascript across multiple files
...copy/pasted" into your HTML page before the page is rendered. Or into your PHP page if you will. Please correct me if I'm wrong here. Thanx.
My example files follow:
EXTERNAL JS:
var global = 0;
function f1()
{
alert('fired: f1');
global = 1;
alert('global changed to 1');
}
function...
Submit form on pressing Enter with AngularJS
...s a pretty good solution with:
<input ng-keyup="$event.keyCode == 13 && myFunc()"... />
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How to export table as CSV with headings on Postgresql?
I'm trying to export a PostgreSQL table with headings to a CSV file via command line, however I get it to export to CSV file, but without headings.
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How to display a confirmation dialog when clicking an link?
...e the confirm() function in an inline onclick handler.
<a href="delete.php?id=22" onclick="return confirm('Are you sure?')">Link</a>
Advanced event handling
But normally you would like to separate your HTML and Javascript, so I suggest you don't use inline event handlers, but put a c...
Spring MVC: Complex object as GET @RequestParam
...x GET to an URL like that: http://foo.com/system/controller/action?page=1&prop1=x&prop2=y&prop3=z
7 Answers
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How to Use slideDown (or show) function on a table row?
...rg1[p];
}
}else if(typeof arg1 != 'undefined' && (typeof arg1 == 'number' || arg1 == 'slow' || arg1 == 'fast')) {
sR.thisCallArgs.slideSpeed = arg1;
}else{
sR.thisCallArgs.slideSpeed = sR.defaults.slideSpeed;
...
Get line number while using grep
...number do this:
grep -nr Pattern file.ext | gawk '{print $1}' FS=":"
Example:
$ grep -nr 9780545460262 EXT20130410.txt | gawk '{print $1}' FS=":"
48793
52285
54023
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C++11 rvalues and move semantics confusion (return statement)
...
First example
std::vector<int> return_vector(void)
{
std::vector<int> tmp {1,2,3,4,5};
return tmp;
}
std::vector<int> &&rval_ref = return_vector();
The first example returns a temporary which is ca...
C++ convert hex string to signed integer
...ss << std::hex << "fffefffe";
ss >> x;
the following example produces -65538 as its result:
#include <sstream>
#include <iostream>
int main() {
unsigned int x;
std::stringstream ss;
ss << std::hex << "fffefffe";
ss >> x;
// o...