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How to ignore the first line of data when processing CSV data?
I am asking Python to print the minimum number from a column of CSV data, but the top row is the column number, and I don't want Python to take the top row into account. How can I make sure Python ignores the first line?
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What is the difference between atomic / volatile / synchronized?
...t getNextUniqueIndex() {
return counter++;
}
It basically reads value from memory, increments it and puts back to memory. This works in single thread but nowadays, in the era of multi-core, multi-CPU, multi-level caches it won't work correctly. First of all it introduces race condition (several...
PHP Regex to check date is in YYYY-MM-DD format
...nism for this.
The modern solution, with DateTime:
$dt = DateTime::createFromFormat("Y-m-d", $date);
return $dt !== false && !array_sum($dt::getLastErrors());
This validates the input too: $dt !== false ensures that the date can be parsed with the specified format and the array_sum trick...
Easy way to dismiss keyboard?
...is is actually guaranteed to work, or is just a non-guaranteed side effect from calling an API in a way that it's not documented to work.
– JosephH
Sep 14 '10 at 4:28
3
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When do items in HTML5 local storage expire?
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@AndresRiofrio I can't find any documentation from Mozilla or Microsoft or the W3C that stipulates any sort of mandatory expiration. Thus I think the answer is that yes, the user agent is supposed to keep stored stuff around forever, or until the user explicitly requests...
What's the difference between lists and tuples?
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Apart from tuples being immutable there is also a semantic distinction that should guide their usage. Tuples are heterogeneous data structures (i.e., their entries have different meanings), while lists are homogeneous sequences. Tu...
How to pass parameters to a modal?
I want to pass the userName from a list of userName s a logged in user clicks on to twitter bootstrap modal .
I am using grails with angularjs , where data is rendered via angularjs .
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Formatting “yesterday's” date in python
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Use datetime.timedelta()
>>> from datetime import date, timedelta
>>> yesterday = date.today() - timedelta(days=1)
>>> yesterday.strftime('%m%d%y')
'110909'
sh...
Git: Create a branch from unstaged/uncommitted changes on master
...ranch_name
does not touch your local changes. It just creates the branch from the current HEAD and sets the HEAD there.
So I guess that's what you want.
--- Edit to explain the result of checkout master ---
Are you confused because checkout master does not discard your changes?
Since the change...
Read password from stdin
...n', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f1761744%2fread-password-from-stdin%23new-answer', 'question_page');
}
);
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