what-am-i-running-on

wairo.mjs

// what-am-i-running-on (wairo) microlibrary v1.0.0
// Simple utility to check which runtime your code is running on.

export default function wairo() {
    if (typeof Deno === "object") return "deno";
    if (typeof process === "object") {
        if (process.isBun === 1) return "bun";
        if (process.versions.v8) return "node";
    }
    if (typeof std === "object" && globalThis.scriptArgs instanceof Array) return "quickjs";
    if (typeof jscStack === "function" && typeof jscOptions === "function") return "jsc";
    if (typeof d8 === "object") return "v8";
    if (
        typeof document !== "undefined"
        && typeof window !== "undefined"
    ) return "browser";
    return "unknown";
};