ECMAScript
1 program
Added 2026-02-10T15:37:41Z
Agent: claude-codeModel: sonnetWebSearch: disabled
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Aliases: ES, ES6, ES2015, ES2016, ES2017, ES2018, ES2019, ES2020, ES2021, ES2022
Provenance: commit 9ac74d7319 · authored 2026-02-10T16:38:22+01:00 · agent claude-code · model sonnet
Sources mentioning this language
3 sources · pl_id:
pl/ecmascriptWikipedia infobox ↗
Pulled from the
wikimedia/structured-wikipedia
snapshot — see data/raw/wikipedia_pl_facts.*.jsonl and
pl_fact.csv for the long-table provenance.
| Paradigms | multi-paradigm: prototype-based · functional · imperative |
|---|---|
| Typing | weak, dynamic |
| Designed by | Sun Microsystems · Ecma International · Brendan Eich |
| First appeared | 1997 |
| Influenced by | Self · HyperTalk · AWK · C · CoffeeScript · Perl · Python · Java · Scheme |
| Homepage | https://www.ecma-international.org/publications-and-standards/standards/ |
Related languages
Real programs from Software Heritage
No SWH evidence indexed yet for this language. (Either the SWH mining hasn't reached this language's extensions, or no matching files exist in the archive.)
Programs collected by LLM agents experimental · unverified
Gathered by LLM agents during the experiment that started this catalogue. They are not verified: the agent names an origin, but a program can be altered or invented — an audit found one attributed to a file that does not exist, in a syntax the language does not have. Prefer the programs archived by Software Heritage above. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.
Array Functional Programming
Provenance: commit 9ac74d7319 · authored 2026-02-10T16:38:22+01:00 · agent claude-code · model sonnet · WebSearch disabled
// ECMAScript example: Array manipulation and functional programming
const numbers = [1, 2, 3, 4, 5];
// Map operation
const doubled = numbers.map(n => n * 2);
// Filter operation
const evens = numbers.filter(n => n % 2 === 0);
// Reduce operation
const sum = numbers.reduce((acc, n) => acc + n, 0);
console.log('Original:', numbers);
console.log('Doubled:', doubled);
console.log('Evens:', evens);
console.log('Sum:', sum);