InfiniteScrolling

InfiniteScrolling.js

const maxlimitCheck = () => this.tags.length >= TOTAL_TAGS;

const checkScrollLimit = () => {
    if (!LIMIT_REACHED) {
        const scrollingTrue = true;
        PARAMS.start += this.limit;
        maxlimitCheck() ? LIMIT_REACHED = true : fetchTags(scrollingTrue);
    }
};

const reachedBottom = () => tagsCol.scrollHeight - tagsCol.scrollTop === tagsCol.offsetHeight;

const scrollingTags = () => reachedBottom() ? checkScrollLimit() : null;

const fillTagsList = (tags, scrolling) => {
    const modifiedTags = R.map(R.assoc('ticker', this.ticker))(tags.array);
    const coloredTags  = TagsFactory.setTagColors(modifiedTags, $state.params);
    scrolling ? R.forEach(pushInTags, coloredTags) : this.tags = coloredTags;
    return this.tags;
};

const attachTags = R.curry((scrolling = false, tags) => {
    TOTAL_TAGS = tags.total;
    this.tags = fillTagsList(tags, scrolling);
    return this.tags;
});

// http://codereview.stackexchange.com/questions/151767/how-to-better-organize-the-declarations-of-these-functions/151770#151770
const fetchTags = (scrolling = false) => {
    LIMIT_REACHED = false;
    const curriedAttachTags = (tags) => attachTags(scrolling, tags);
    return GetTagsFactory.getTags(false, Util.encodeTicker(this.ticker), PARAMS).then(curriedAttachTags);
};