Maps in Go
Golang Concepts
Maps
Maps are a convenient and powerful built-in associative data structure in Golang that associate values of one type (the key) with values of another type (the element or value)
Maps declaration and initialization
//syntax
m := make(map[key-type]val-type)
//declaration
m := make(map[string]int) // key-value string and valuetype int
// declaration and initialization
var timeZone = map[string]int{
"UTC": 0*60*60,
"EST": -5*60*60,
"CST": -6*60*60,
"MST": -7*60*60,
"PST": -8*60*60,
}
Modify maps (key/value)
Set key/value pairs using typical name[key] = val syntax
//get value
UTC := timeZone["UTC"]
//set value
timeZone["UTC"] = -7*60*60
//delete key/value
delete(timeZone, "UTC")