Delete key in map


I have a map:

var sessions =  map[string] chan int{}

How do I delete sessions[key]? I tried:

sessions[key] = nil,false;

That didn’t work.

Update (November 2011):

The special syntax for deleting map entries is removed in Go version 1:

Go 1 will remove the special map assignment and introduce a new built-in function, delete: delete(m, x) will delete the map entry retrieved by the expression m[x]. …


Go introduced a delete(map, key) function:

package main

func main () {
    var sessions = map[string] chan int{};
    delete(sessions, "moo");

Answered By – user181548

Answer Checked By – Marie Seifert (GoLangFix Admin)

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