Sometime it is needed to get the host name in TruClient script. There is no direct alternative of lr_get_host_name (web-http) for TruClient.
Pretty much the same behavior as lr_get_host_name can be achieved by reading the environment variables by using Utils.getEnv('COMPUTERNAME') as on the example:
var name = Utils.getEnv('COMPUTERNAME');
window.alert(name); //Confirm it works
LR.log(name, "Standard"); //Confirm it works