uikit/src/js/mixin/slider-reactive.js

UIkit is a lightweight and modular front-end framework for developing fast and powerful web interfaces.

export default {

    update: {

        write() {

            if (this.stack.length || this.dragging) {
                return;
            }

            const index = this.getValidIndex(this.index);

            if (!~this.prevIndex || this.index !== index) {
                this.show(index);
            }

        },

        events: ['resize']

    }

};