Function round$1

libs/echarts/echarts-en.simple.js:18950–18958

* (1) Fix rounding error of float numbers. * (2) Support return string to avoid scientific notation like '3.5e-7'. * * @param {number} x * @param {number} [precision] * @param {boolean} [returnStr] * @return {number|string}

(x, precision, returnStr)

 * @return {number|string}
 */
function round$1(x, precision, returnStr) {
    if (precision == null) {
        precision = 10;
    }
    // Avoid range error
    precision = Math.min(Math.max(0, precision), 20);
    x = (+x).toFixed(precision);
    return returnStr ? x : +x;
}

/**
 * asc sort arr.