upgradeLevel() Netscript Function ================================= .. js:function:: upgradeLevel(i, n) :RAM cost: 0 GB :param number i: Index of Hacknet Node. :ref:`See here for details ` :param number n: Number of levels to purchase. Must be positive. Rounded to nearest integer :returns: ``true`` if the upgrade was successful. Tries to upgrade the level of the specified Hacknet Node by *n*.