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Generate a Hash from string in Javascript
...ng-strings) and the bitwise function is actually more slow than the number based function.
– skerit
Jun 29 '12 at 21:23
17
...
What is the purpose of the “final” keyword in C++11 for functions?
...ady mentioned in a comment is that if you are overriding a function from a base class, then you cannot possibly mark it as non-virtual:
struct base {
virtual void f();
};
struct derived : base {
void f() final; // virtual as it overrides base::f
};
struct mostderived : derived {
//vo...
jquery if div id has children
...use $('#id').children().length > 0 to test if an element has children.
Demo
var test1 = $('#test');
var test2 = $('#test2');
if(test1.children().length > 0) {
test1.addClass('success');
} else {
test1.addClass('failure');
}
if(test2.children().length > 0) {
tes...
surface plots in matplotlib
... values.
http://matplotlib.sourceforge.net/mpl_examples/mplot3d/surface3d_demo.py
here's pythonic way to convert your 3-tuples to 3 1d arrays.
data = [(1,2,3), (10,20,30), (11, 22, 33), (110, 220, 330)]
X,Y,Z = zip(*data)
In [7]: X
Out[7]: (1, 10, 11, 110)
In [8]: Y
Out[8]: (2, 20, 22, 220)
In [9...
Set a path variable with spaces in the path in a Windows .cmd file or batch file
... JoeyJoey
304k7575 gold badges627627 silver badges640640 bronze badges
...
How to get the last char of a string in PHP?
...es, you can access the last character in the string like this:
$str[-1]
DEMO
At the request of a @mickmackusa, I supplement my answer with possible ways of application:
<?php
$str='abcdef';
var_dump($str[-2]); // => string(1) "e"
$str[-3]='.';
var_dump($str); // => string(6) "abc...
How to remove close button on the jQuery UI dialog?
...our suggestion works well when using the example provided by the jquery ui demo site with ASP.NET v2.0 in an .aspx page. jqueryui.com/demos/dialog/modal-form.html
– Matthew Dally
Feb 14 '12 at 13:53
...
Javascript array search and remove string?
...
DEMO
You need to find the location of what you're looking for with .indexOf() then remove it with .splice()
function remove(arr, what) {
var found = arr.indexOf(what);
while (found !== -1) {
arr.splice(foun...
/etc/apt/sources.list" E212: Can't open file for writing
...g:
Instead of losing all your changes and re-opening with sudo. See this demo of how to save those changes:
One time Setup demo to create a root owned read only file for a lower user:
sudo touch temp.txt
sudo chown root:root temp.txt
sudo chmod 775 temp.txt
whoami
el
First open the file as nor...
Is it possible to make a div 50px less than 100% in CSS3? [duplicate]
...0px);
width: -moz-calc(100% - 50px);
width: calc(100% - 50px);
}
Demo: http://jsfiddle.net/thirtydot/Nw3yd/66/
This will make your life so much easier. It is currently supported in the 3 main browsers: Firefox, Google Chrome (WebKit), and IE9: http://caniuse.com/calc
MDN: https://develop...