Adding Optgroups To Select Using Javascript Dynamically

I have a dynamically populated (by ajax) select box with resulting options like that: London-PSolution 1: You can do this in place using jQuery:$(document).ready(function() { var select = $('#destination'); var opt1, opt2; $('option', select).each(function(i) { if (i % 2 === 0) { opt1 = $(this); } else { opt2 = $(this); var label = opt1.text().replace('London-', ''); var optgroup = $('<optgroup/>'); optgroup.attr('label', label); opt2.add(opt1).wrapAll(optgroup); } }); }); CopyThis code iterates over all the options in the select tag, and wraps every set of two in an optgroup. It also figures out what to label the optgroup as, based on text in the options.Solution 2: This is not too tricky, you only need to move around your options a bit. Take them out of the document flow, add an optgroup in the place of the two associated options and append the options to that optgroup.Assuming that the options are actually sequential, as in your example, a possible, good old DOM scripting implementation is as follows:var destinationSelect = document.getElementById("destination"); var options = destinationSelect.getElementsByTagName("option"); var optgroups = []; while(options.length > 0) { var option1 = options[0]; var option2 = options[1]; var optgroup = document.createElement("optgroup"); var label = option1.innerHTML.replace(/^[^\-]-/, ""); optgroup.setAttribute("label", label); destinationSelect.removeChild(option1); destinationSelect.removeChild(option2); optgroup.appendChild(option1); optgroup.appendChild(option2); optgroups.push(optgroup); } for(var i = 0; i < optgroups.length; i ++) { destinationSelect.appendChild(optgroups[i]); } Copy Share Post a Comment for "Adding Optgroups To Select Using Javascript Dynamically" Top Question Displaying Multiple Series In The Navigator Of An HighStock Chart I would like to create an HighStock chart containing a navi… Edit A Txt File Using Javascript/jquery I want to modify a .txt (overwrite completely) using javasc… Determine The 'Overtype' Mode Using Javascript We are creating a web app to replace an old-school green-sc… Prevent Right/left Arrow Navigation In Select I have 3 selects that I am enabling keyboard navigation(rig… Regular Expression To Force Single Blank Space After A First Character How do I force a space after first character as user types.… How To Add Pagination In Table Using D3? i have following code,i have to add pagination on this tabl… Node Js Auto Restart All Forever Js Process When Server Goes Down / Crashes I am using forever js to keep my node server running 24/7 o… SweetAlert - Change Modal Width? I love this library. I'd like to use it to display a m… Specific Number Of Elements In Loop Are Not Selecting If Data Retrieving From Json Or Xmlhttprequest In Javascript Looking for selection of next few elements by onclick on &#… What Is The Difference Between () => {} And Function() {} In React-native Javascript? I have seen some functions defined as function(){} and some… December 2024 (1) November 2024 (37) October 2024 (67) September 2024 (23) August 2024 (375) July 2024 (342) June 2024 (729) May 2024 (1297) April 2024 (822) March 2024 (1564) February 2024 (1737) January 2024 (1402) December 2023 (1432) November 2023 (433) October 2023 (601) September 2023 (306) August 2023 (350) July 2023 (271) June 2023 (387) May 2023 (221) April 2023 (125) March 2023 (141) February 2023 (185) January 2023 (261) December 2022 (133) November 2022 (216) October 2022 (168) September 2022 (163) August 2022 (509) July 2022 (291) June 2022 (320) Menu Halaman Statis Beranda © 2022 - JavaScript Free