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What to do Regular expression pattern doesn't match anywhere in string?
...y @input_tags = $html =~ m/
(
<input # Starts with "<input"
(?=[^>]*?type="hidden") # Use lookahead to make sure that type="hidden"
[^>]+ # Grab the rest of the tag...
\/> # ...e...
How can I match on an attribute that contains a certain string?
...
mjv's answer is a good start but will fail if atag is not the first classname listed.
The usual approach is the rather unwieldy:
//*[contains(concat(' ', @class, ' '), ' atag ')]
this works as long as classes are separated by spaces only, and...
inserting characters at the start and end of a string
...
>>> s = "0123456789"
>>> s[2]
'2'
Calling range with start and end position:
>>> s[4:6]
'45'
Calling part of a string before that position:
>>> s[:6]
'012345'
Calling part of a string after that position:
>>> s[4:]
'456789'
Inserting your str...
What's better at freeing memory with PHP: unset() or $var = null
...
<?php
$start = microtime(true);
for ($i = 0; $i < 10000000; $i++) {
$a = 'a';
$a = NULL;
}
$elapsed = microtime(true) - $start;
echo "took $elapsed seconds\r\n";
$start = microtime(true);
for ($i = 0; $i < 10000000...
When do we need to set ProcessStartInfo.UseShellExecute to True?
... is
Run any command on the PATH
For example:
Process p = new Process();
p.StartInfo.UseShellExecute = true;
p.StartInfo.FileName = "www.google.co.uk";
p.Start();
It is very easy to use, versatile and powerful however comes with some drawbacks:
It isn't possible to redirect the standard input / ou...
Place cursor at the end of text in EditText
...Changed() method of an EditText class: public void onSelectionChanged(int start, int end) { CharSequence text = getText(); if (text != null) { if (start != text.length() || end != text.length()) { setSelection(text.length(), text.length()); return; }...
Asp.net 4.0 has not been registered
...o open project and the error disappear, but another error show, then I use Start Without Debugging then this error disappear, too.
– yu yang Jian
Dec 15 '16 at 8:37
...
Calculate the median of a billion numbers
...ll be called the "control machine", and for the sake of argument either it starts with all the data, and sends it in equal parcels to the other 99 machines, or else the data starts evenly distributed between the machines, and it sends 1/99 of its data to each of the others. The partitions do not hav...
The breakpoint will not currently be hit. No symbols have been loaded for this document in a Silverl
...t click on solution --> Properties
Look under Common Properties --> Startup Project
Select multiple startup projects
select Start action on the projects you need to debug.
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Why do table names in SQL Server start with “dbo”?
...stackoverflow.com%2fquestions%2f1062075%2fwhy-do-table-names-in-sql-server-start-with-dbo%23new-answer', 'question_page');
}
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