promiseDebouncer.js

let syncReturnPromise = null;
let resolveReturn = null;
let actionSave = [];

syncReturn(Vue, $store, apiResponse, action = false) => {
    if(action){
        actionSave.push(action);
    }
    if (syncReturnPromise !== null) {
        resolveReturn(Vue, $store, apiResponse);
        return syncReturnPromise;
    }

    return syncReturnPromise = new Promise((resolve, reject) => {
        resolveReturn = debounce((Vue, $store, apiResponse) => {
            resolveReturn = null;
            syncReturnPromise = null;
            _syncReturn(Vue, $store, apiResponse, actionSave).then(resolve).catch(reject);
            actionSave = [];
        }, 500);
        resolveReturn(Vue, $store, apiResponse);
    });
}