Thank you very much for all your answers! I come from a JavaScript background, and in JavaScript when you make a function call, a copy of each variable is passed to the function, but if the variable is an array, then only a reference is passed. So, writing to that array will change the original array as well. It's confusing when you combine it with perl. Lol But I am trying to sort it out.
// The only way to work with arrays in JavaScript:
myArray = [0, 1, 2, 3, 4];
ChangeArrayJS(myArray);
function ChangeArrayJS(ARRAY)
{
ARRAY[2] = 'JS'; // changes myArray
var COPY_OF_ARRAY = ARRAY;
COPY_OF_ARRAY[2] = 'this will be lost';
}
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|