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How to decode Unicode escape sequences like “\u00ed” to proper UTF-8 encoded characters?
...\ude38';
$str2 = '\u0063\u0061\u0074'.'\ud83d';
// U+1F638
var_dump(
"cat\xF0\x9F\x98\xB8" === escape_sequence_decode($str),
"cat\xEF\xBF\xBD" === escape_sequence_decode($str2)
);
function escape_sequence_decode($str) {
// [U+D800 - U+DBFF][U+DC00 - U+DFFF]|[U+0000 - U+FFFF]
$rege...
Core dumped, but core file is not in the current directory?
...to other file(mycore.BIN) is being redirected to file which i have used to catch stdout & stderr(applog.txt). Is there a good read about this one? Please suggest. Thank you
– mk..
Jun 2 '14 at 7:53
...
Execute a command line binary with Node.js
... use child_process.exec:
const { exec } = require('child_process');
exec('cat *.js bad_file | wc -l', (err, stdout, stderr) => {
if (err) {
// node couldn't execute the command
return;
}
// the *entire* stdout and stderr (buffered)
console.log(`stdout: ${stdout}`);
console.log...
To find whether a column exists in data frame or not
...eck is "d", you can use the %in% operator:
if("d" %in% colnames(dat))
{
cat("Yep, it's in there!\n");
}
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Hide options in a select list using jQuery
...y expecting variable interpolation. Try this:
$("#edit-field-service-sub-cat-value option[value=" + title + "]").hide();
Note that this will probably break in various hideous ways if title contains jQuery selector metacharacters.
...
Is errno thread-safe?
...e difference with and without -pthread. errno is #define errno (*__errno_location ()) in both cases.
– nos
Nov 28 '11 at 15:47
...
“You have mail” message in terminal, os X [closed]
...) made a change to the OS X system to start presenting Terminal bash notifications. Prior to that, it appears Wordpress had attempted to use the Local Mail system to send a message. The message bounced, due to it having an invalid Recipient address. The bounced message then ended up in the local sys...
Tricks to manage the available memory in an R session
...s(Mayo, 4) +
rcs(PrCr.rat, 3) + rbc.cat * Sex,
data = subset(set1HLI, gdlab2 & HIVfinal == "Negative",
select = c("surv.yr", "death", "PrCr.rat", "Mayo",
"age", "Sex", "nsmkr", "rbc.c...
Hidden Features of VB.NET?
...tional bRetry as Boolean = False)
Try
ssh.Connect(host, user, password)
Catch ex as TimeoutException When Not bRetry
''//Try again, but only once.
Login(host, user, password, True)
Catch ex as TimeoutException
''//Log exception
End Try
End Sub
...
Virtual Serial Port for Linux
I need to test a serial port application on Linux, however, my test machine only has one serial port.
8 Answers
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