const [one, two = null, three = null] = arr;
a = ([s = 1]) => 1;
const { children, ...props } = this.props;

const {
  user: { firstName, lastName },
} = this.props;

const {
  name: { first, last },
  organisation: {
    address: { street: orgStreetAddress, postcode: orgPostcode },
  },
} = user;

function f({ data: { name } }) {}

const UserComponent = function ({
  name: { first, last },
  organisation: {
    address: { street: orgStreetAddress, postcode: orgPostcode },
  },
}) {
  return;
};

const {
  a,
  b,
  c,
  d: { e },
} = someObject;

try {
  // code
} catch ({ data: { message } }) {
  // code
}

try {
  // code
} catch ({
  data: {
    message: { errors },
  },
}) {
  // code
}

const obj = {
  func(id, { blog: { title } }) {
    return id + title;
  },
};

class A {
  func(id, { blog: { title } }) {
    return id + title;
  }
}