you said
const add = () => { a + b} ;
there is not even a or b in the param. Also, you open the {, and so you need a return. Otherwise it is going to evaluate a + b and return nothing.
a
b
{
return
a + b
Or just use
const add = (a, b) => a + b;
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you said
there is not even
a
orb
in the param. Also, you open the{
, and so you need areturn
. Otherwise it is going to evaluatea + b
and return nothing.Or just use