JQuery Select Operation Large Collection

This article summarizes the selection of the text and value;jquery Add/Remove options option for jquery to get Select, and gives a corresponding explanation.

jquery Gets the text and value selected by select:
Syntax Explanation:

 $ ("#select_id"). Change (function  () {//     code ...}); Adds an event for select, triggering  var  checktext=$ ("#select_id") when one of the items is selected. Find ("option:   Selected "). Text (); //  Gets the text  of select selection   var  checkvalue=$ ("#select_id"). Val (); //    var  checkindex=$ ("#select_id"). Get (0). SelectedIndex; //  Gets the index value of the select selection    var  maxindex=$ ("#select_id option:last"). attr ("index"); //  Get Select maximum index value jquery setting select text and value:  

Syntax Explanation:

$ ("#select_id"). Get (0). selectedindex=1;   // Set the Select index value to 1 to select    $ ("#select_id"). Val (4);    // Sets the value of select to 4 for the item   selected true);    // set the text value of select to the item selected   for jquery

jquery Add/Remove option for select:

Syntax Explanation:

 $ ("#select_id"). Append ("<option value= ' value ' >Text</option>"); //  append an option (drop-down)  $ ("#select_id") for select. Prepend ("<option value= ' 0 ' > Please select   </option> "); //    insert an option (first position)  $ ("#select_id option:last") for Select. Remove (); //    $ (" #select_id option[index= ' 0 '] "). Remove (); //    $ (" #select_id option[value= ' 3 ") of the index value 0 in select. Remove (); //    remove option  $ ("#select_id option[text= ' 4") in select Value= ' 3 '. Remove (); //  
 for text= ' 4 ' in select

JQuery Select Operation Large Collection