Programming-Idioms

Idiom

# 334 Combine 2 maps

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Create the new map c containing all of the (key, value) entries of the two maps a and b.

Explain what happens for keys existing in both a and b.

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final c = {...a, ...b};

c := make(M, len(a)+len(b))
for k, v := range a {
	c[k] = v
}
for k, v := range b {
	c[k] = v
}

let c = {...a, ...b}

%c = (%a, %b);

c = {**a, **b}

c = a.merge(b)