babel/packages/babel-plugin-transform-arrow-functions/test/fixtures/arrow-functions/implicit-var-arguments/input.js

var arguments = [1, 2, 3];
var arr = (n) => arguments[0];

arr(4); // 1

function foo(n) {
var f = () => arguments[0] + n; // foo's implicit arguments binding. arguments[0] is n
return f();
}