• ← Apply
• → MapAt

Map (/@)

WMA link

Map[f, expr] or f /@ expr

applies f to each part on the first level of expr.

Map[f, expr, levelspec]

applies f to each level specified by levelspec of expr.

• • f /@ {1, 2, 3}

• • #^2& /@ {1, 2, 3, 4}

Map f on the second level:

• • Map[f, {{a, b}, {c, d, e}}, {2}]

Map f onto an association:

• • Map[f, <|"a" -> 1, "b" -> 2, "c" -> 3, "d" -> 4|>]

Include heads:

• • Map[f, a + b + c, Heads->True]

Use the operator form of Map:

• • Map[f][{a, b, c}]