Function objectIs

app/src/static/js/react-bootstrap.js:8495–8501

(x, y)

// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is

function objectIs(x, y) {
  if (x === y) {
    return x !== 0 || 1 / x === 1 / y;
  } else {
    return x !== x && y !== y;
  }
}

function createEventEmitter(value) {
  var handlers = [];