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Test if something is not undefined in JavaScript
... edited Jul 25 '17 at 20:10
gunwin
2,59944 gold badges2727 silver badges4444 bronze badges
answered Aug 12 '11 at 13:58
...
Python Graph Library [closed]
...our lab. It is really fast compared to other python libraries. Besides, drawing and displaying graph is pretty awesome in graph-tool. Takes a lot of time to compile though!
– Dilawar
Mar 14 '13 at 8:44
...
What is a CSRF token ? What is its importance and how does it work?
... it is implied by your login.)
You visit www.cute-cat-pictures.org, not knowing that it is a malicious site.
If the owner of that site knows the form of the above request (easy!) and correctly guesses you are logged into mybank.com (requires some luck!), they could include on their page a request li...
Convert a CERT/PEM certificate to a PFX certificate
...
Windows version of OpenSSL is available at slproweb.com/products/Win32OpenSSL.html. Just tried it, and it worked properly for this purpose.
– BrianFinkel
Sep 30 '11 at 17:55
...
Find integer index of rows with NaN in pandas dataframe
...etter than [i for i, k in enumerate(mask) if k] .)
– Winand
Feb 4 '16 at 6:51
2
You could probabl...
How do I move the turtle in LOGO? [closed]
...e left
NODRAW [ND] - Enter text mode with clear screen
NOWRAP - Prevent drawings from wrapping around screen
PENCOLOR [PC] - Change pen color
PENDOWN [PD] - Turtle leaves trail
PENUP [PU] - Turtle ceases to leave trail
RIGHT ## [RT] - Turn turtle right
SETHEADING [SETH] - Set turtle heading, e.g. SE...
jQuery - hashchange event
...ou can detect if the browser supports the event by:
if ("onhashchange" in window) {
//...
}
See also:
Detecting event support without browser sniffing
Emulating onhashchange without setInterval
window.onhashchange
s...
How do I start a process from C#?
...s much more control over the process including scheduling, the type of the window it will run in and, most usefully for me, the ability to wait for the process to finish.
using System.Diagnostics;
...
Process process = new Process();
// Configure the process using the StartInfo properties.
process....
Repeating characters in VIM insert mode
..."<C-o> is used to issue normal commands without leaving INSERT mode" wins my can't-believe-I-never-knew-about-this award!
– Stabledog
Mar 20 '14 at 13:30
11
...
SVN change username
...he repository will ask you again for username/password information.
(For Windows, the steps are analogous; the auth directory is in %APPDATA%\Subversion\).
Note that this will only work for SVN access schemes where the user name is part of the server login so it’s no use for repositories access...