Null Conditional Operators

Question

C# 6.0 has just been released and has a new nice little feature that I\'d really like to use in JavaScript. They\'re called Null-conditional operators. These use a ?.<

Answer 1

Called "optional chaining", it's currently a TC39 proposal in Stage 4. A Babel plugin however is already available in v7.

Example usage:

const obj = {
  foo: {
    bar: {
      baz: 42,
    },
  },
};

const baz = obj?.foo?.bar?.baz; // 42

const safe = obj?.qux?.baz; // undefined