Online Perl Editor.

Module export

// Perl
export function normalize(rows) {
  return rows.map((r) => ({ id: String(r.id), ok: Boolean(r.ok) }));
}

Async I/O

async function readConfig(path) {
  const raw = await readFile(path, 'utf8');
  return JSON.parse(raw);
}

Bindings

const limit = 25;
let cursor = 0;
var legacy = true; // avoid in new code

Loops

for (const item of list) {
  work(item);
}

while (cursor < limit) { cursor++; }

Functions

function slugify(input) {
  return input.trim().toLowerCase().replace(/\s+/g, '-');
}

Comments

// line
/* block */

Parse → transform → emit

// Perl pipeline sketch
const input = readLines();
const output = input
  .map(line => line.trim())
  .filter(Boolean)
  .map(transform);
writeLines(output);

Error handling wrapper

// Perl
function runSafely(task) {
  try {
    return { ok: true, value: task() };
  } catch (err) {
    return { ok: false, error: String(err) };
  }
}

Does Perl code run on ConversionTab servers?

No. Editing happens in your browser. Download the file and run it in your usual compiler, runtime, or platform.

Can I change theme and font size?

Yes. Use the toolbar above the editor; choices persist in local storage for your browser profile.