| Class | Description |
|---|
| App | Application configuration state. |
| ArgError | Arguments error exception class. |
| Args | The Args class parses the Application's command line. |
| ArithmeticError | Arithmetic error exception class. |
| Array | Arrays provide a growable, integer indexed, in-memory store for objects. |
| Boolean | Boolean class from which to create true and false values. |
| ByteArray | ByteArrays provide a resizable, integer indexed, in-memory store for bytes. |
| Cache | Cache meta class to manage in-memory storage of key-value data. |
| Cmd | The Cmd class supports invoking other programs as separate processes on the same system. |
| AssertError | Assertion error exception class. |
| Config | Config class providing settings for various "configure" program settings. |
| Date | General purpose class for representing and working with dates, times, time spans and time zones. |
| BinaryStream | BinaryStreams encode and decode various objects onto streams. |
| CommonLogClass | Common Log web server logging. |
| Debug | Debug configuration class. |
| Emitter | The emitter class provides a publish/subscribe model of communication via events. |
| Controller | Web framework controller class. |
| Database | SQL Database support. |
| DatabaseConnector | Database Connector interface. |
| Error | Error exception object and base class. |
| ErrorEvent | Error event for Web Workers. |
| Event | Event for Web Workers. |
| File | The File class provides a foundation of I/O services to interact with physical files. |
| FileSystem | The FileSystem objects provide global information about a file systems. |
| GC | Garbage collector control class. |
| Frame | Function call frame class. |
| Function | The Function type is used to represent functions, function expressions, closures and class methods. |
| Http | The Http object represents a Hypertext Transfer Protocol version 1.1 client connection. |
| HttpServer | HttpServer objects represents the server-side of Hypertext Transfer Protocol (HTTP) version 1.1 connections. |
| IOError | IO error exception class. |
| Inflector | Inflector class to convert singular to plural and vice-versa. |
| InstructionError | Code (instruction) error exception class. |
| JSON | Encoding and decoding to JavaScript Object Notation strings (JSON). |
| Loader | CommonJS loader class. |
| LocalCache | Fast, non-scalable, non-durable, in-memory key/value cache class. |
| Logger | Logger objects provide a convenient and consistent method to capture and store logging information. |
| Math | The Math class provides a set of static methods for performing common arithmetic, exponential and
trigonometric functions. |
| Memory | Singleton class to monitor and report on memory allocation and using. |
| MemoryError | Memory error exception class. |
| MprLog | The MprLog class manages the Application's internal MPR log mechanism. |
| Null | Base type for the null value. |
| Number | The Number type is used by all numeric values in Ejscript. |
| Mvc | The Mvc class manages the loading and initialization of MVC web applications. |
| Object | The Object Class is the root class from which all objects are based. |
| Path | Paths are filename objects and may or may not represent physical files in a file system. |
| Record | Database record class. |
| ReferenceError | Reference error exception class. |
| RegExp | Regular expressions per ECMA-262. |
| ResourceError | Resource error exception class. |
| Request | Web request class. |
| Route | A Route describes a mapping from a URI to a web application. |
| Router | The Router class manages incoming HTTP requests to the appropriate location application for servicing. |
| Session | Session state storage class. |
| Socket | Client and server side TCP/IP support for IPv4 and IPv6 communications. |
| StateError | State error exception class. |
| StopIteration | StopIteration class. |
| Stream | Stream objects represent streams of data that pass data elements between an endpoint known as a source or sink
and a consumer or producer. |
| String | Each String object represents a single immutable linear sequence of characters. |
| SyntaxError | Syntax error exception class. |
| System | System is a utility class providing methods to interact with the operating system. |
| TemplateParser | Web Page Template Parser - Parse an ejs web page and emit an Ejscript source file (.es). |
| TextStream | TextStreams interpret data as a stream of characters. |
| Timer | Timers manage the execution of functions at some point in the future. |
| Type | Base class for all type objects. |
| TypeError | Type error exception class. |
| Uri | The URI class to provides the ability to create, and manipulate URIs and their constituent components. |
| Void | The Void type is the base class for the undefined value. |
| WebSocket | WebSocket class to implement the WebSockets RFC 6455 specification for client-side communications. |
| Worker | Worker Class. |
| UploadFile | Instances of UploadFile are created for each uploaded file. |
| View | Base class for web framework Views. |
| XML | The XML class provides a simple ability to load, parse and save XML documents. |
| global | |