JSFiddle - React, Tailwind, and code Playground

JavaScript

var id = "1#2#3#4#5#";
var chkdId = id.slice(0, -1);
console.log(chkdId);
var arr = chkdId.split('#');
var checkedId = '';
var chkdLen = arr.length;

// here is the array
var arrayWithResults = [];

for (var i = 0; i < chkdLen; i++) {
    checkedId = arr[i];
    var checkedId = checkedId;
    var data = {};
    var year = $('#year').val();
    data["year"] = year;
    data['type'] = "report";
    data['accidentId'] = checkedId;
    console.log(data);
    ajax.readData('/report/readreport', data, null,
        function (result) {
            console.log(result);
            
            // here you push in the requested data
            arrayWithResults.push(result);
        },
        function (error) {
            alert('err ' + error);
        }
    );

}