JSFiddle - React, Tailwind, and code Playground

HTML

<div ng-controller="MyCtrl">
    <select ng-options="value for value in params1" ng-model="axisX" ng-change="update()"></select>
</div>

JavaScript

var myApp = angular.module('myApp',[]);

function MyCtrl($scope) {
    $scope.params1 = ["FSC-A", "FSC-H", "FSC-W", "SSC-A"];
    
     $scope.update = function(){
        console.log('axisX is');
        console.log($scope.axisX);
    }
}