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What is tail recursion?
...onsider a simple function that adds the first N natural numbers. (e.g. sum(5) = 1 + 2 + 3 + 4 + 5 = 15).
Here is a simple JavaScript implementation that uses recursion:
function recsum(x) {
if (x === 1) {
return x;
} else {
return x + recsum(x - 1);
}
}
If you called ...
Difference between “module.exports” and “exports” in the CommonJs Module System
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How to check if an element is in an array
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Swift 2, 3, 4, 5:
let elements = [1, 2, 3, 4, 5]
if elements.contains(5) {
print("yes")
}
contains() is a protocol extension method of SequenceType (for sequences of Equatable elements) and not a global method as in
earlier releases....
Is there any difference between the `:key => “value”` and `key: “value”` hash notations?
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Django's SuspiciousOperation Invalid HTTP_HOST header
After upgrading to Django 1.5, I started getting errors like this:
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Maven project version inheritance - do I have to specify the parent version?
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EDIT: Since Maven 3.5.0 there is a nice solution for this using ${revision} placeholder. See FrVaBe's answer for details. For previous Maven versions see my original answer below.
No, there isn't. You always have to specify parent's version. ...
Is there a recommended format for multi-line imports?
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answered Jan 17 '13 at 10:45
Brendan MaguireBrendan Maguire
2,87433 gold badges1818 silver badges2323 bronze badges
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What are all the user accounts for IIS/ASP.NET and how do they differ?
...;MACHINE_NAME> local account that was the default anonymous user for IIS5 and IIS6 websites (i.e. the one configured via the Directory Security tab of a site's properties).
For more information about IIS_IUSRS and IUSR see:
Understanding Built-In User and Group Accounts in IIS 7
DefaultApp...
Perl flags -pe, -pi, -p, -w, -d, -i, -t?
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– duskwuff -inactive-
Jun 10 '11 at 5:28
9
-w is generally avoided, but it should be replaced wit...
How do I parse a string into a number with Dart?
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