Async collector in javascript

AsyncCollector.js

export default class AsyncCollector {
    gotData = [];
    constructor(timeout, ...funcs) {
        return new Promise((resolve, reject) => {
            const promisesOfFuncs = funcs.map(item => item());
            Promise.all(promisesOfFuncs)
                .then(values => this.gotData = values)
                .then(() => {
                    setTimeout(() => {
                        resolve(this.gotData);
                    }, timeout);
                });
        });
    }
}

// Example of usage
// function getImg() {
//     return new Promise((resolve, reject) => {
//         setTimeout(() => {
//             resolve("image");
//         }, 500);
//     });
// }

// function getText() {
//     return new Promise((resolve, reject) => {
//         setTimeout(() => {
//             resolve("text");
//         }, 900);
//     });
// }

// (async () => {
//     let dataFromServer = await new AsyncCollector(1000, getImg, getText);
//     console.log(dataFromServer);
// })();

In what situations might it be useful? Imagine you need to get a data from server A and server B, and you want to combine these datas in an array. So here it is. Collector!