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How to read a file into a variable in shell?
...n variables.
This affects both expansion and read solutions, and I don't know any good workaround for it.
Example:
printf "a\0b" | od -tx1
S="$(printf "a\0b")"
printf "$S" | od -tx1
Outputs:
0000000 61 00 62
0000003
0000000 61 62
0000002
Ha, our NUL is gone!
Workarounds:
ASCII encode. Se...
Garbage collector in Android
... @ThomasPornin - On the other hand, as an application programmer, you know something that the OS does not know: times at which your app is now going to make a major change in how it uses memory, and that it would be less disruptive to the user experience to take a pause now, than at an arbitrar...
Unzip files programmatically in .net
...
We have used SharpZipLib successfully on many projects. I know it's a third party tool, but source code is included and could provide some insight if you chose to reinvent the wheel here.
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Parse an HTML string with JS
...upported by webkit and you'd have to follow Florian's answer, and it is unknown to work in most cases on mobile browsers.
Edit: Now widely supported
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Is Task.Result the same as .GetAwaiter.GetResult()?
...xUnit, and NUnit all support async Task unit tests, and have for some time now.
– Stephen Cleary
Jun 24 '13 at 22:18
20
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Using R to download zipped data file, extract, and import data
... See help(gzfile) -- I was thinking that the gzip protocol may now uncompress (stone old) .z files too now that the patent has long expired. It may not. Who uses .z anyways? The 1980s called, they want their compression back ;-)
– Dirk Eddelbuettel
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How do I create and read a value from cookie?
...name, value, days = 7, path = '/') => {
const expires = new Date(Date.now() + days * 864e5).toUTCString()
document.cookie = name + '=' + encodeURIComponent(value) + '; expires=' + expires + '; path=' + path
}
const getCookie = (name) => {
return document.cookie.split('; ').reduce((r, v)...
Take screenshots in the iOS simulator
...is an option
Menubar ▶ Window ▶ Enable "Show Device Bezel"
Now,
Press ⌘ + shift + 4 + Spacebar, all together in Mac Keyboard. (A window snap capture mode will become active)
Select Simulator window/frame, that you want to capture. It will save screenshot with device bezel (with ...
In Vim is there a way to delete without putting text in the register?
...remap P "*P
vnoremap y "*y
vnoremap Y "*Y
vnoremap p "*p
vnoremap P "*P
Now I yank to and put from the clipboard register, and don't have to care what happens with the default register. An added benefit is that I can paste from other apps with minimal hassle. I'm losing some functionality, I know...
What is the purpose of fork()?
...d process
const char *argv[] = {"arg1", "arg2", "arg3", NULL};
// now start executing some other program
exec("/path/to/a/program", argv);
}
The shell spawns a child process using exec and waits for it to complete, then continues with its own execution. Note that you don't have to us...