What is Baby Script?
Baby Script is a toy programming language where every JavaScript keyword and operator is replaced by baby babble, toddler demands, and crying noises. It ships with a real lexer, parser, tree-walking interpreter, and a compiler that emits JavaScript - built like any other esolang you'd find in the wild.
Real pipeline
Hand-rolled lexer → Pratt parser → AST → interpreter and JS emitter. No regex substitution hacks.
Runs anywhere
baby run file.baby on Node, or try it live on the playground.
Compiles to JS
baby build file.baby -o out.js emits standalone JavaScript ready to ship.
Open source
Apache 2.0 licensed. TypeScript source, tested with node:test.
Hello, Baby Script
// me wave one tiny hand at fren.
gugu wavey(baby_fren) {
aou("henlo " pa baby_fren pa "! 👶");
}
wavey("world");
See the full dictionary for every babble token.
A taste of the language
// how many giggles me hear by each nap day?
gugu giggles(nap_day) {
ooh (nap_day tiny 2) { pbbbt nap_day; }
pbbbt giggles(nap_day ma 1) pa giggles(nap_day ma 2);
}
// me sort the toy pile and make only even zoomies.
baba toy_pile = [1, 2, 3, 4, 5];
baba even_zoomies = toy_pile.keppy((toy_num) ~> toy_num pupu 2 zizi 0).mimimi((toy_num) ~> toy_num mapa 2);
aou(even_zoomies); // [4, 8]
// me reach into internet crib for a fresh toy.
asisi gugu pick_toy() {
hmm {
baba toybox = awaa fufu("https://pokeapi.co/api/v2/pokemon/1");
baba squish = awaa toybox.fafa();
aou("baby got:", squish.name);
} waaah (oopsie) {
aou("oopsie:", oopsie.message);
}
}
pick_toy();