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R script line numbers at error?
...set this option globally using options( keep.source=TRUE ), but I have not tested this to see if it works. If you don't need line numbers, you can omit this option.
From the terminal (outside R), call the main script in batch mode using Rscript myMainScript.R. This starts a new non-interactive R se...
Any way to break if statement in PHP?
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I needed to execute the same code after each successful test (about 3 or 4 tests), and put an elseif on each failed test. This is exactly what I was searching for, now my code is KISS and DRY compliant :) Thanks!
– s3v3n
Jul 24 '12 at 15:26
...
Escape regex special characters in a Python string
...ackoverflow\.com
Repeating it here:
re.escape(string)
Return string with all non-alphanumerics backslashed; this is useful if you want to match an arbitrary literal string that may have regular expression metacharacters in it.
As of Python 3.7 re.escape() was changed to escape only characters whi...
Trust Anchor not found for Android SSL Connection
...tevie Accepting EVERY certificate is only an option for a proof of concept test, where SSL connection is not the part you want to test. Otherwise you don't have to use SSL, if you accept every certificate, as the connection is not secure!
– Matthias B
Apr 30 '1...
In HTML I can make a checkmark with ✓ . Is there a corresponding X-mark?
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I just tested and this doesn't work in IE 8... IE 9, FireFox, and Chrome work correctly. Here's a good link to more symbols: danshort.com/HTMLentities/index.php?w=dingb
– Nathan Prather
Aug 26 ...
How to pre-populate the sms body text via an html link
...body text here */">Link</a>
Live demo here: http://bradorego.com/test/sms.html (note the "Phone and ?body" and "Phone and ;body" should autofill both the to: field and the body text. View the source for more info)
UPDATE:
Apparently iOS8 had to go and change things on us, so thanks to so...
Grabbing the href attribute of an A element
...*=\s*['\"](.*?)['\"]/", $str, $res);
var_dump($res);
?>
then
$ php test.php
array(2) {
[0]=>
array(1) {
[0]=>
string(27) "<a title="this" href="that""
}
[1]=>
array(1) {
[0]=>
string(4) "that"
}
}
which works. I've just removed the first capture b...
Concatenate a vector of strings/character
...cdefghijklmnopqrstuvwxyz"
And some benchmarks:
require(microbenchmark)
test <- stri_rand_lipsum(100)
microbenchmark(stri_paste(test, collapse=''), paste(test,collapse=''), do.call(paste, c(as.list(test), sep="")))
Unit: microseconds
expr min lq ...
Making a UITableView scroll when text field is selected
...he question. I've seen a lot of people with similar problems but can't get all the answers to work right.
45 Answers
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PHP - Debugging Curl
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You can enable the CURLOPT_VERBOSE option:
curl_setopt($curlhandle, CURLOPT_VERBOSE, true);
When CURLOPT_VERBOSE is set, output is written to STDERR or the file specified using CURLOPT_STDERR. The output is very informative.
You can also use tcpdu...