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What is the most efficient way to deep clone an object in JavaScript?
...t object? I've seen obj = eval(uneval(o)); being used, but that's non-standard and only supported by Firefox . I've done things like obj = JSON.parse(JSON.stringify(o)); but question the efficiency. I've also seen recursive copying functions with various flaws.
I'm surprised no canoni...
Group by multiple columns in dplyr, using string vector input
I'm trying to transfer my understanding of plyr into dplyr, but I can't figure out how to group by multiple columns.
9 Answ...
Batch renaming files with Bash
... to remove their version numbers? I've been toying around with both expr and %% , to no avail.
10 Answers
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How do I get an object's unqualified (short) class name?
...thout its namespace.
First, you need to build a ReflectionClass instance, and then call the getShortName method of that instance:
$reflect = new ReflectionClass($object);
if ($reflect->getShortName() === 'Name') {
// do this
}
However, I can't imagine many circumstances where this would b...
Sending mail from Python using SMTP
...www1.cs.columbia.edu/~db2501/ssmtplib.py)
As in your script, the username and password, (given dummy values below), used to authenticate on the SMTP server, are in plain text in the source. This is a security weakness; but the best alternative depends on how careful you need (want?) to be about pro...
What is a non-capturing group in regular expressions?
How are non-capturing groups, i.e. (?:) , used in regular expressions and what are they good for?
15 Answers
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Get first day of week in PHP?
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but, it means the start and the end of 'this week', right?
– Oki Erie Rinaldi
Aug 7 '15 at 6:59
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Adding n hours to a date in Java?
... found another example using days on StackOverflow, but still don't understand how to do it with hours.
15 Answers
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How to get a list of all files that changed between two Git commits?
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For files changed between a given SHA and your current commit:
git diff --name-only <starting SHA> HEAD
or if you want to include changed-but-not-yet-committed files:
git diff --name-only <starting SHA>
More generally, the following syntax will ...
Appending the same string to a list of strings in Python
I am trying to take one string, and append it to every string contained in a list, and then have a new list with the completed strings. Example:
...