
Using JavaScript Array functions we can achieve Sorting of Ascending, Descending and Sort by Match String. This sample program uses JavaScript array “sort()”, “reverse()”, and “concat” function sorting.
Example:
var listArray = [ 'Trivandram', 'Chennai', 'Madurai', 'Cochin', 'Palakkad', 'Coimbatore', 'Calicut', 'Bangalore' ]; function sortByGivenMatchingString(match, sortList) { var first = []; var temp = []; for (var i = 0; i < sortList.length; i++) { realStr = sortList[i].toLowerCase(); if (realStr.indexOf(match) === 0) { first.push(sortList[i]); } else { temp.push(sortList[i]); } } first.sort(); temp.sort(); return(first.concat(temp)); } // Sort By Default Ascending. var matchString = ''; var formatResult = sortByGivenMatchingString(matchString.toLowerCase(), listArray); console.log(formatResult); // Ascending Output: [ 'Bangalore', 'Calicut', 'Chennai', 'Cochin', 'Coimbatore', 'Madurai', 'Palakkad', 'Trivandram' ] // Sort By Default Descending. var matchString = ''; var formatResult = sortByGivenMatchingString(matchString.toLowerCase(), listArray); console.log(formatResult.reverse()); // Descending Output: [ 'Trivandram', 'Palakkad', 'Madurai', 'Coimbatore', 'Cochin', 'Chennai', 'Calicut', 'Bangalore' ] // Sort Character 'C'. var matchString = 'C'; var formatResult = sortByGivenMatchingString(matchString.toLowerCase(), listArray); console.log(formatResult); // Sorting using "c" Character [ 'Calicut', 'Chennai', 'Cochin', 'Coimbatore', 'Bangalore', 'Madurai', 'Palakkad', 'Trivandram' ]