void

const output = void 1;
console.log(output);
// Expected output: undefined

void console.log("expression evaluated");
// Expected output: "expression evaluated"

void (function iife() {
  console.log("iife is executed");
})();
// Expected output: "iife is executed"

void function test() {
  console.log("test function executed");
};
try {
  test();
} catch (e) {
  console.log("test function is not defined");
  // Expected output: "test function is not defined"
}

void expression

void 2 === "2"; // (void 2) === '2' false
void (2 === "2"); // void (2 === '2') undefined

function iife() {
  console.log("Executed!");
}(); // SyntaxError: Unexpected token ')'

function () {
  console.log("Executed!");
}(); // SyntaxError: Function statements require a function name

void (function () {
  console.log("Executed!");
})();

// Output: "Executed!"

(function () {
  console.log("Executed!");
})();

<a href="javascript:void(0);">  </a>

<a href="javascript:void(document.body.style.backgroundColor='green');">
  
</a>

button.onclick = () => void doSomething();