Use a regular expression in VS Code's find/replace to replace && with JavaScript's optional chaining

In December 2019, optional chaining went to TC39 stage 4. Here is a regular expression to replace most instances of foo && foo.bar and baz && baz() with optional chaining.

Find: (\s)([.a-zA-Z]+) &&[\n\s]*(\2).?([^\s])

Replace: $1$3?.$4

Before:

const t1 = callback && callback(result);

const t2 = filename && filename.lenght;

const t3 =
    error &&
    error.innerError &&
    error.innerError.code === 'invalid_token';

After:

const t1 = callback?.(result);

const t2 = filename?.lenght;

const t3 =
    error?.innerError &&
    error.innerError.code === 'invalid_token';

Isn't that nicer? Thank you TC39 and VS Code!

A further challenge is to find a regex that will cause the following replacement:

Before:

const t3 =
    error?.innerError &&
    error.innerError.code === 'invalid_token';

After:

const t3 = error?.innerError?.code === 'invalid_token';

Maybe someday.