javascript - Using Filter on Radio Buttons -


when using filter on radio button, error stating .filter not function. far know, selecting radio buttons name returns array , should able use filter on array.

any highly appreciated.

<form action="" name='myform'>   <p>select beach</p>   <input type="checkbox" value='miami' id='miami' name='check'>   <label for="miami">miami</label>   <br>   <input type="checkbox" value='florida' id='florida' name='check'>   <label for="florida">florida</label>   <br>   <input type="checkbox" value='jamaica' id='jamaica' name='check'>   <label for="jamaica">jamaica</label>    <p>select airline</p>   <input type="radio" value='american' id='american' name='airline'>   <label for="american">american</label>   <br>   <input type="radio" value='air india' id='airindia' name='airline'>   <label for="airindia">air india</label>   <br>   <input type="radio" value='indigo' id='indigo' name='airline'>   <label for="indigo">indigo</label>   <br>   <br>   <button type='submit'>submit</button> </form>

script

var myform=document.myform;   myform.addeventlistener('submit',getans);  function getans(e){   e.preventdefault()  var radios=myform.airline,      checks=myform.check;    console.log(radios);   var airline= radios.filter(function(val){     return val.checked;   });   console.log(radios); }

it's not array, array-like object. can still use filter, have use call make work.

var myform=document.myform; myform.addeventlistener('submit',getans);  function getans(e){   e.preventdefault()  var radios=myform.airline,      checks=myform.check;    console.log(radios);   var airline= [].filter.call(radios, function(val){     return val.checked;   });    console.log(airline); }

edit: far clarification, call allows use methods made other objects or classes, , use them on own objects. in case, filter method made arrays, if use call, can use on form collection. some further documentation here.


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