JSFiddle - React, Tailwind, and code Playground

by Kevin Faulhaber

JavaScript

var json =
[
{"label":"Tom","ID":1,"RefDepartment":1,"Department":"Executive Management","RefDesignation":1,"Designation":"Administator"},

{"label":"Smith","ID":2,"RefDepartment":1,"Department":"Executive Management","RefDesignation":1,"Designation":"Administator"},

{"label":"John","ID":3,"RefDepartment":1,"Department":"Executive Management","RefDesignation":1,"Designation":"Administator"}

];

var name = "Smith";
var dept = "NULL";
for(var i = 0; i < json.length; i++)
{
     if(json[i].label == name)
     {
             dept = json[i].Department;
     }
}

alert(dept);