html - add text from textfield into selectbox at javascript? -

can point @ tutorial adding text (by user) textfield select list (after clicking button) javascript?

thanks

here simple jsfiddle shows how can dynamically add option select tag using javascript input textfield:

html:

<select id='myselect'></select> <input type='text' value='' name='mytext' id='mytext' /> <button value='submit' id='mybtn' name='submit'>submit</button> 

javascript:

var myselect = document.getelementbyid('myselect');  function createoption(){     var currenttext = document.getelementbyid('mytext').value;     var objoption = document.createelement("option");     objoption.text = currenttext ;     objoption.value = currenttext ;      //myselect.add(objoption);     myselect.options.add(objoption); }  document.getelementbyid('mybtn').onclick = createoption; 

basically have text field, button , select box in html. submit button attached onclick event calls createoption function. createoption function creates option element , add select box option text , value equal text text field. using document.getelementsbyid able inject newly created element selectbox , retrive inserted value textfield.

however, if looking written tutorial reference using javascript dynamically populate form creating form dynamically