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Programming-Idioms

  • Erlang
  • Groovy

Idiom #172 Insert an entry in a map

Insert value v for key k in map m.

m[k] = v

Use index notation. The value of k is used as the key. This delegates to the regular putAt method.
m.k = v

Uses property notation. Note: this uses the literal string value k as the key.
(assoc m k v)

Returns a new map.
New implementation...
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programming-idioms 
m[k] = v
m.k = v
(assoc m k v)
m[k] = v;
m[k] = v;
m[k] = v;
m[k] = v;
m[k] = v
newM = Map.insert k v m
m.set(k, v);
m[k] = v;
m.put(k, v);
$m[$k] = $v;
m.KeyData[k] := v;
$m{$k} = $v;
m[k] = v
m.update({k: v})
m[k] = v
m.insert(k, v);
m at: k put: v.