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How can I view the source code for a function?
...S4 method dispatch system
The S4 system is a newer method dispatch system and is an alternative to the S3 system. Here is an example of an S4 function:
> library(Matrix)
Loading required package: lattice
> chol2inv
standardGeneric for "chol2inv" defined from package "base"
function (x, ...)...
vertical alignment of text element in SVG
...but it was off screen, so I used a CSS rule "alignment-baseline: hanging", and it did exactly what I was looking for, text at highest point in the SVG container, without a single pixel being offscreen.
– R. Hill
Apr 12 '13 at 15:06
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How to customize the back button on ActionBar
I have been able to customize the action bar's background, logo image and text color using suggestions from these:
Android: How to change the ActionBar "Home" Icon to be something other than the app icon?
ActionBar text color
ActionBar background image
...
How to paginate with Mongoose in Node.js?
I am writing a webapp with Node.js and mongoose. How can I paginate the results I get from a .find() call? I would like a functionality comparable to "LIMIT 50,100" in SQL.
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Object.getOwnPropertyNames vs Object.keys
What's the difference between Object.getOwnPropertyNames and Object.keys in javascript? Also some examples would be appreciated.
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Pragma in define macro
...rgument
except it can be used in macros (see section 6.10.9 of the c99 standard, or 16.9 of the c++0x final committee draft)
For example,
#define STRINGIFY(a) #a
#define DEFINE_DELETE_OBJECT(type) \
void delete_ ## type ## _(int handle); \
void delet...
How to sparsely checkout only one single file from a git repository?
...
Originally, I mentioned in 2012 git archive (see Jared Forsyth's answer and Robert Knight's answer), since git1.7.9.5 (March 2012), Paul Brannan's answer:
git archive --format=tar --remote=origin HEAD:path/to/directory -- filename | tar -O -xf -
But: in 2013, that was no longer possible for re...
Stop execution of Ruby script
...says in the other answer, use abort to specify a failed end to the script, and exit for a successful end.
– Jrgns
Jul 1 '14 at 6:04
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iOS Equivalent For Android Shared Preferences
I am porting an Android app to iOS, one thing I used was the Shared Preferences in Android to save each time a level was complete.
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[SOLVED] Can't send payload > 23bytes(MTU setted to 128bytes) - #9 by ...
... "regular" scheme is dark */
/* user picked a theme a light scheme and also enabled a dark scheme */
/* deal with light scheme first */
@media (prefers-color-scheme: light) {
:root {
--primary: #222222;
--secondary: #ffffff;
--te...