How to execute a Js function when selecting an input radio

var rad = document.form.radios;
var prev = null;
for (var i = 0; i < rad.length; i++) {
  rad[i].onclick = function() {
    qualquerFuncao(this);
  }
};

function qualquerFuncao(e) {
  console.log(e.value);
}

<form name="form">
  <input type="radio" name="radios" value="radio 1" />
  <input type="radio" name="radios" value="radio 2" />
</form>

$(document).ready(function() {
  $('input:radio[name="radios"]').change(function() {
    if ($("input[name='radios']:checked")) {
      qualquerFuncao($(this).val());
    } else {
      //...
    }

  });
});

function qualquerFuncao(e) {
  console.log(e);
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script><formname="form">
  <input type="radio" name="radios" value="radio 1" />
  <input type="radio" name="radios" value="radio 2" />
</form>

jQuery(function($){
   $(':radio').change(function(){
      alert ("Codigo função");
   });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script><formaction="/action_page.php">
  <input type="radio" id="gender" name="gender" value="male"> Male<br>
  <input type="radio" id="gender" name="gender" value="female"> Female<br>
  <input type="radio" id="gender" name="gender" value="other"> Other<br><br>
  <input type="submit">
</form>