question (?)
punctuator '(' and ')'
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punctuator '(' and ')'
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⟩ ⟩ ⟩ ⟩ question (?)
optional chaining (?., ?.[]) - obj ?. prop, obj ?. [prop]
optional invocation ?.() - f ?. ()
conditional operator (?:) - condition ? a : b
nullish coalescing (??) - optional ?? default