Maps

// Similar to a dict
var m map[string]int
m = make(map[string]int)
m["Alpha"] = 1
m["Beta"] = 2
m    // map[Alpha:1 Beta:2]

// Literals are okay
var m = map[string]int{"Alpha": 1, "Beta": 2}

// Mutating
m["Beta"] = 3

// Deleting
delete(m, "Alpha")

// Checking for presence
value, isthere := m["Alpha"]   // 0 false
value, isthere = m["Beta"]     // 3 true