Hands-on-exercise #4 https://play.golang.org/p/5-wjJBOB46U
Hands-on-exercise #5 https://play.golang.org/p/KXUuw4JGgnJ
Hands-on-exercise #6 https://docs.google.com/forms/d/e/1FAIpQLSfyN4xMJZPoz_2bVy-BXctXfb1a64n4deYF9jj6JLnhpwA3dw/formResponse
String types https://play.golang.org/p/mFzGDAivHgR
Hand-on-exercise #1 https://play.golang.org/p/bVmKeb8IugQ
Hand-on-exercise #2 https://play.golang.org/p/NxCMPFvbUAw
Hand-on-exercise #4 https://play.golang.org/p/hq-K6FEeUGm
Hand-on-exercise #7 https://docs.google.com/forms/d/e/1FAIpQLSfjhxXjo0r_OsVys58B1lVs35CLPpneVcjiEKTPsLuQs4mftA/formResponse
#level 4
Hands-on-exercise #8,9,10 https://play.golang.org/p/PRfPNisjzkA
#Struct https://play.golang.org/p/ZrAEfHFhtqU
https://play.golang.org/p/97tABPH7_on
#level 5
Hands-on-exercise #1 https://play.golang.org/p/LKxeWpdpcOx
Hands-on-exercise #2 https://play.golang.org/p/g8oi1ZOXorz
Hands-on-exercise #3 https://play.golang.org/p/J-9oNwVNaSm
Hands-on-exercise #4 https://play.golang.org/p/97tABPH7_on
#level 6
Hands-on-exercise #1 https://play.golang.org/p/vXErxZYL1Vp
Hands-on-exercise #2 https://play.golang.org/p/L1oChEErvG0
Hands-on-exercise #3 https://play.golang.org/p/grqzVyPplRl
Hands-on-exercise #4 https://play.golang.org/p/7PBiuktw6Ao
Hands-on-exercise #5 https://play.golang.org/p/vxc3GgNZQJn
Hands-on-exercise #6 https://play.golang.org/p/6RtAha2WqPg
#level 7
Hands-on-exercise #2 https://play.golang.org/p/0kngR2S8e2p
#level 8
Hands-on-exercise #3 https://play.golang.org/p/vhbEoCAw3kI
Hands-on-exercise #5 https://play.golang.org/p/0JEcDq8eeDl