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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...
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 ($reflect->getShortName() === 'Name') {
// do this
}
However, I can't imagine many circumstances where this would b...
Get first day of week in PHP?
...
but, it means the start and the end of 'this week', right?
– Oki Erie Rinaldi
Aug 7 '15 at 6:59
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Appending the same string to a list of strings in Python
I am trying to take one string, and append it to every string contained in a list, and then have a new list with the completed strings. Example:
...
Sending mail from Python using SMTP
...www1.cs.columbia.edu/~db2501/ssmtplib.py)
As in your script, the username and password, (given dummy values below), used to authenticate on the SMTP server, are in plain text in the source. This is a security weakness; but the best alternative depends on how careful you need (want?) to be about pro...
Function to convert column number to letter?
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You can add the (0) to the end of the Split command if you want to save yourself a variable declaration and extra line of code. eg Col_letter = Split(Cells(1, lngCol).Address(True, False), "$")(0)
– Caltor
Feb 18 '15 at 12:21
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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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Calling shell functions with xargs
...xargs -n 1 -P 10 -I {} bash -c 'echo_var "$@"' _ {}
Also, using return 0 and exit 0 like that masks any error value that might be produced by the command preceding it. Also, if there's no error, it's the default and thus somewhat redundant.
@phobic mentions that the Bash command could be simplifi...
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 ...
Best way to select random rows PostgreSQL
I want a random selection of rows in PostgreSQL, I tried this:
12 Answers
12
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