Function isNumberUserReadable

src/util/format.ts:74–76

(num: number)

        return (str && zrUtil.trim(str)) ? str : '-';
    }
    function isNumberUserReadable(num: number): boolean {
        return isNullableNumberFinite(num);
    }

    const isTypeTime = valueType === 'time';
    const isValueDate = value instanceof Date;