Espruino Wifi - How to reconnect?

Hi,
is this about ESP8266 modules like ESP-12F? Hope sample below will help to you:

var wifi=require("Wifi");
wifi.on('connected',function(details){ ... });
wifi.on('disconnected',function(details)­{ ... });
wifi.on('associated',function(details){ ... });
wifi.on('sta_joined',function(details){ ... });
wifi.on('sta_left',function(details){ ... });
wifi.on('auth_change',function(details){­ ... });
wifi.on('dhcp_timeout',function(){ ... });