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- <select id="cat">
- <option val="Laptops">Laptops</option>
- <option val="Phones">Phones</option>
- <option val="Tablets">Tablets</option>
- <option val="PC">PC</option>
- </select>
- <select id="item"></select>
- <input id='price' type='text' readonly/>
- Laptops=new Array("HP","Dell","Apple","Lenovo");
- Phones=new Array('Samsung','Nokia','iPhone');
- Tablets=new Array('Apple','Lenovo','Asus','Acer','HP');
- PC=new Array('IBM','Macintosh','Dell');
- populateSelect();
- $(function() {
- $('#cat').change(function(){
- populateSelect();
- });
- });
- function populateSelect(){
- cat=$('#cat').val();
- $('#item').html('');
- eval(cat).forEach(function(t) {
- $('#item').append('<option>'+t+'</option>');
- });
- }
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