Jquery append to (dynamic by id)

Question

Lets say i have function with id paremeter and two select box

<select id="one" onchange="Fill(2)"></select>
<select id="two" onchange="Fill(3)"></select>
<select id="three"></select>

My function

function Fill(id){  
//some manupulation
$('<option/>').val(substr[0]).html(substr[1]).appendTo('#two');
}

But instead of doing many

if(id==2) {$('<option/>').val(substr[0]).html(substr[1]).appendTo('#two');}
if(id==3) {$('<option/>').val(substr[0]).html(substr[1]).appendTo('#three');}

i want something like

$('<option/>').val(substr[0]).html(substr[1]).appendTo(DYNAMIC);

Answer 1

You could make it much easier by using ids such as select-1 , select-2 etc. and then use '#select-' + id .

Otherwise you need a mapping object which maps from digits to spelled numbers.

Answer 2

function Fill(id){  
  var index = {
    1: 'one',
    2: 'two',
    3: 'three'; 
  };
  $('<option/>').val(substr[0]).html(substr[1]).appendTo('#' + index[id]);
  // or just, but in this case you need to change the *id* pattern like opt_1, opt_2 etc
  $('<option/>').val(substr[0]).html(substr[1]).appendTo('#opt_' + id);
}

Answer 3

easier than you think :)

<select id="select-1" onchange="Fill(2)"></select>
<select id="select-2" onchange="Fill(3)"></select>
<select id="select-3"></select>

function Fill(id){ // 
    //some manupulation
    $('<option/>').val(substr[0]).html(substr[1]).appendTo('select-' + id);
}

Answer 4

将此行添加到Fill函数的顶部：

 var DYNAMIC = $(this);

Answer 5

I'm going to go with David Thomas' suggestion:

<select id="one" onchange="Fill(this);"></select>
<select id="two" onchange="Fill(this);"></select>
<select id="three"></select>

With the Fill function defined as:

function Fill(select) {
    $('<option />').val(/*..*/).html(/*..*/).appendTo($(select));
}

You would then be able to give your selects whatever id that you want, and you would not have to query the DOM to find the object.