Function useRefEffect

docs/app/js/sanddance-app.js:34779–34798

(callback, initial)

 */ parcelHelpers.export(exports, "useRefEffect", ()=>useRefEffect);
var _react = require("react");
function useRefEffect(callback, initial) {
    if (initial === void 0) initial = null;
    var data = _react.useRef({
        ref: Object.assign(function(value) {
            if (data.ref.current !== value) {
                if (data.cleanup) {
                    data.cleanup();
                    data.cleanup = undefined;
                }
                data.ref.current = value;
                if (value !== null) data.cleanup = data.callback(value);
            }
        }, {
            current: initial
        }),
        callback: callback
    }).current;
    data.callback = callback;
    return data.ref;
}

},{"react":"8ePka","@parcel/transformer-js/src/esmodule-helpers.js":"jA2du"}],"jsoAX":[function(require,module,exports) {
var parcelHelpers = require("@parcel/transformer-js/src/esmodule-helpers.js");