11 Ways to Invoke a Function

function_invocation.js

console.log(1);
(_ => console.log(2))();
eval('console.log(3);');
console.log.call(null, 4);
console.log.apply(null, [5]);
new Function('console.log(6)')();
Reflect.apply(console.log, null, [7])
Reflect.construct(function(){console.log(8)}, []);
Function.prototype.apply.call(console.log, null, [9]);
Function.prototype.call.call(console.log, null, 10);
new (require('vm').Script)('console.log(11)').runInThisContext();

Does this count?

var i = document.createElement("img");
i.onerror = function() { console.log(1); };
i.src = "nope";

do not forget constructor without parenthesis so mainly 5 way.
function A () {};
new A;
A``;
A();
A.call();
A.apply();

with double colon bind operator:
console::(console.log)(0)

Promise.resolve(19).then(console.log)

console["log"](9)

Using Proxy (not yet mentioned) you can make accessing, setting, etc a property to be an actual function call:

const log = new Proxy(console.log, {
  get: (orig, key) => orig(key)
});

log[11];

Based on this awesome/awful feature I created a little monster:

const buttons = dom.button.html;
dom.a.html = 'Hello world';

This thread has some interesting examples: https://stackoverflow.com/questions/35949554/invoking-a-function-without-parentheses

I'm a fan of this one:

(class { [console.log(1)](){} })
({[console.log(1)](){}})
(function z( a = console.log(1) ){})()
[...{[Symbol.iterator](){return {next(){ return {done:console.log(1)}}}}}]; // hehe
try{[1,2,3][~~(Math.random()*4)].toString()}catch(e){console.log(12)}; // nondeterministically run console.log