> Given input valid JSON JSON.parse() or JSON.stringify() replacer function can
> be utilized to substitute "undefined" for null.
guest271314, that’s a lot of code! It feels like if anything, your example
backs up the proposal.
> `const { z =? 'a' } = { z: null };`
I’m not sure I like the proposed syntax. The question mark indicates to me that
it’s the value on the lhs that’s optional - when in reality, it’s the other way
around.
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