Method depthVolume

src/node-binance-api.ts:3527–3542

* Calculate Buy/Sell volume from DepthCache * @param {string} symbol - the symbol to fetch * @return {object} - the depth volume cache object

(symbol: string)

     * @return {object} - the depth volume cache object
     */
    depthVolume(symbol: string) {
        const cache = this.getDepthCache(symbol);
        let quantity, price;
        let bidbase = 0, askbase = 0, bidqty = 0, askqty = 0;
        for (price in cache.bids) {
            quantity = cache.bids[price];
            bidbase += parseFloat((quantity * parseFloat(price)).toFixed(8));
            bidqty += quantity;
        }
        for (price in cache.asks) {
            quantity = cache.asks[price];
            askbase += parseFloat((quantity * parseFloat(price)).toFixed(8));
            askqty += quantity;
        }
        return { bids: bidbase, asks: askbase, bidQty: bidqty, askQty: askqty };
    }

    /**
     * Checks whether or not an array contains any duplicate elements