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Check if pull needed in Git
...u} returns an abbreviated upstream ref (e.g. origin/master), which is then converted into space-separated fields by the piped sed command, e.g. origin master.
This string is fed into git ls-remote which returns the head commit of the remote branch. This command will communicate with the remote repos...
Is it possible to use global variables in Rust?
...t spawn. The upside is that unlike truly global state, it is entirely safe and is not a pain to use - true global state is a massive pain in any language. Here's an example:
extern mod sqlite;
use std::cell::RefCell;
thread_local!(static ODB: RefCell<sqlite::database::Database> = RefCell::n...
How to change the color of an svg element?
...a specific color, use the following Codepen(Click Here to open codepen) to convert a hex color code to a CSS filter:
For example, output for #00EE00 is
filter: invert(42%) sepia(93%) saturate(1352%) hue-rotate(87deg) brightness(119%) contrast(119%);
Add the CSS filter into this class.
...
Web-scraping JavaScript page with Python
...e/'
r = Render(url)
result = r.frame.toHtml()
# This step is important.Converting QString to Ascii for lxml to process
# The following returns an lxml element tree
archive_links = html.fromstring(str(result.toAscii()))
print archive_links
# The following returns an array containing the URLs
ra...
Does Entity Framework Code First support stored procedures?
I've watched several presentations of EF Code First and haven't seen how EFCF works with stored procedures.
5 Answers
...
Copy a stream to avoid “stream has already been operated upon or closed”
...low this pattern after a mapTo though using an IntStream. I found I had to convert it back to a Set<Integer> using collect(Collectors.toSet()) ... and do a couple of operations on that. I wanted max() and if a specific value was in set as two operations... filter(d -> d == -1).count() == 1;...
Should functions return null or an empty object?
...g data from functions. Is it better to return a Null or an empty object? And why should one do one over the other?
31 Ans...
How do you run your own code alongside Tkinter's event loop?
...his and the external code, too.
pass
root = tk.Tk()
root.wm_title('Temp Converter')
app = Application(master=root)
w = 200 # width for the Tk root
h = 125 # height for the Tk root
# get display screen width and height
ws = root.winfo_screenwidth() # width of the screen
hs = root.winfo_screenhe...
How can I extract a good quality JPEG image from a video file with ffmpeg?
...re precisely specify quality, subsampling and DCT method – e.g. GIMP) to convert the PNGs you want to JPEG.
It is possible to obtain slightly sharper images in JPEG format this way than is possible with -qmin 1 -q:v 1 and outputting as JPEG directly from ffmpeg.
...
Is there an equivalent for var_dump (PHP) in Javascript?
...ehaviors based on existance or
// absence of a var_name parameter. By converting 'undefined' to 'empty
// string', the length greater than zero test can be applied in all cases.
var_name = typeof var_name === 'undefined' ? '':var_name;
var out = '';
var v_name = '';
switch ...