JavaScript Is there a way to get outer scope variables with the same name?

If I defined some variable in outer closure, and in the inner closure has defined another variable with the same name. Can I somehow get the outer variable?

I know it's still somewhere in the memory and not been overwritten since it can be printed after the function. Is there a way to access it?

const foo = 'outer';

function bar() {
  const foo = 'inner';

  // Is there a way to get the outside foo from here?
  console.log(foo);   // "inner", but I want it to be "outer"
}

bar();

console.log(foo); // "outer"
Answer:1

If foo is on the top level and declared with const, one of the only ways to access it with new Function, whose scope when run is on the top level. (Please don't actually do this):

const foo = 'outer';

function bar() {
  const foo = 'inner';
  const fn = new Function('return foo');
  console.log(fn('foo'));
}

bar();

console.log(foo); // "outer"
Answer:2

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