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Swift Beta performance: sorting arrays
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tl;dr Swift 1.0 is now as fast as C by this benchmark using the default release optimisation level [-O].
Here is an in-place quicksort in Swift Beta:
func quicksort_swift(inout a:CInt[], start:Int, end:Int) {
if (end - start < 2){
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Is JavaScript a pass-by-reference or pass-by-value language?
...itive types (number, string, etc.) are passed by value, but objects are unknown, because they can be both passed-by-value (in case we consider that a variable holding an object is in fact a reference to the object) and passed-by-reference (when we consider that the variable to the object holds the o...
How can I troubleshoot my Perl CGI script?
I have a Perl script that isn't working and I don't know how to start narrowing down the problem. What can I do?
8 Answers
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Convert a character digit to the corresponding integer in C
...the same for letters, for example:
char c = 'b';
int x = c - 'a'; // x is now not necessarily 1
The standard guarantees that the char values for the digits '0' to '9' are contiguous, but makes no guarantees for other characters like letters of the alphabet.
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How to edit a node module installed via npm?
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Thanks! That's exactly what I wanted to know. Also, for others reading this... I wanted to include the module that's on my github in the package.json file, and there's info here about that: stackoverflow.com/a/8306715/1810875
– user1810875
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Can I have multiple :before pseudo-elements for the same element?
... normal element. In your example, the end result looks like this:
.circle.now:before {
content: "Now";
font-size: 19px;
color: black;
}
As you can see, only the content declaration that has highest precedence (as mentioned, the one that comes last) will take effect — the rest of the...
set date in input type date
...applies for day field also.
Please follow the fiddle link for demo:
var now = new Date();
var day = ("0" + now.getDate()).slice(-2);
var month = ("0" + (now.getMonth() + 1)).slice(-2);
var today = now.getFullYear()+"-"+(month)+"-"+(day) ;
$('#datePicker').val(today);
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How to get the integer value of day of week
How do I get the day of a week in integer format? I know ToString will return only a string.
9 Answers
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Using node.js as a simple web server
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Simplest Node.js server is just:
$ npm install http-server -g
Now you can run a server via the following commands:
$ cd MyApp
$ http-server
If you're using NPM 5.2.0 or newer, you can use http-server without installing it with npx. This isn't recommended for use in production but ...
Ukkonen's suffix tree algorithm in plain English
...e an initial tree, which looks like this:
And what it means is this:
Now we progress to position 2 (right after b). Our goal at each step
is to insert all suffixes up to the current position. We do this
by
expanding the existing a-edge to ab
inserting one new edge for b
In our representati...