javascriptarrayshtmlhtml-datalist

HTML datalist values from array in JavaScript

I have a simple program which has to take the values from the text file on a server and then populate the datalist as the selection in the input text field.

For this purpose the first step I want to take is that I want to know how the JavaScript array can be used as a datalist option dynamically.

My code is:

<html>
<script>

var mycars = new Array();
mycars[0]='Herr';
mycars[1]='Frau';

</script>

<input name="anrede" list="anrede" />
<datalist id="anrede">
  <option value= mycars[0]></option>
  <option value="Frau"></option> 
</datalist>
</html>

I want to populate the input text field containing the datalist as suggestions from the array. Also here I haven't taken into account the array values. Actually I need not two datalist options but an arbitrary number (depending on the array length).

Solution

  • I'm not sure if I understood your question clearly. Anyway, try this:

    var mycars = new Array();
mycars[0] = 'Herr';
mycars[1] = 'Frau';

var options = '';

for (var i = 0; i < mycars.length; i++) {
  options += '<option value="' + mycars[i] + '" />';
}

document.getElementById('anrede').innerHTML = options;
    <input name="car" list="anrede" />
<datalist id="anrede"></datalist>