Many Perl programmers are involved in the web, and for many that includes JavaScript. This is a thought for how these exiles may find ways to apply Perl wisdom.

JavaScript is definitely a foreign land. I have pity for those who cannot easily know whether 2+2 will give 4 or '22'. But here are some familiar sights to look for.

With current browsers JavaScript supports regular expressions. While they are called Perl compatible they are not in truth Ilya compatible. But they do provide a familiar sight.

Advanced monks may recognize that JavaScript supports anonymous functions with full closures. This is very nice if you have learned to use thse in Perl. However many have not.

And I have saved the best for last. Did you know that you can use a JavaScript variable in the same way you would use a Perl hash? The language is different, but the properties of the object are your keys, and the values are your values. :-)

In reply to A thought for JavaScript exiles by tilly

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.