on-one/dist/esm/index.js

Subscribe to one or more events and accept the first emitted

const isArray = Array.isArray || ((x)=>Object.prototype.toString.call(x) === '[object Array]');
export default function onOne(emitter, nameOrNames, fn) {
    const names = isArray(nameOrNames) ? nameOrNames : [
        nameOrNames
    ];
    let called = false;
    function wrapper() {
        if (called) return;
        called = true;
        // cleanup
        names.forEach((name)=>emitter.removeListener(name, wrapper));
        // biome-ignore lint/complexity/noArguments: Apply arguments
        return fn.apply(null, arguments);
    }
    names.forEach((name)=>emitter.on(name, wrapper));
}