CODE EXAMPLE FOR JAVASCRIPT

how to know which radio button is selected javascript

//html
        <input type="radio" name="someName" value="value1">
        <label>value1</label>
        <input type="radio" name="someName" value="value2">
        <label>value2</label>
//js
const radioButtons = document.querySelectorAll('input[name="someName"]');
var selectedRadioButton;
for (const radioButton of radioButtons) {
  if (radioButton.checked) {
    selectedRadioButton = radioButton.value;
    break;
  }
}
//now you have the value selected in selectedRadioButton