A library to perform list manipulations in javascript. Like Linq:
// perform jinq queries on app.employees
var a = app.employees.Where("x.salary>2000");
var b = app.employees.FirstOrDefault("x.city === 'Eindhoven'");
var c = app.employees.FirstOrDefault("x.city === 'London'");
var d = app.employees.Select("x.salary");
var e = app.employees.SelectMany("x.projects");
var f = app.employees.SelectMany("x.projects").Distinct(("x"));