Globals
Ejscript defines a set of global variables and functions. These provide essential constants and utility functions. For a complete list, see the Global Functions and Variables page.
Global Variables
The Ejscript run-time defines the following global variables:
| Variable Name | Description |
|---|---|
| false | False boolean value |
| global | Global variables for this request |
| Infinity | Floating point number set to Infinity |
| local | Local variables |
| Nan | Floating point number set to "Not a Number" |
| null | Defined variable set to Null |
| true | True boolean value |
| undefined | Variable has no value and is set to the Undefined Value |
Ejscript Functions
Ejscript defines a set of global functions. See the complete list in the Script Library API reference. Here are some of the major functions:
| Script Name | Syntax | Examples | Description |
|---|---|---|---|
| assert | assert(condition) | assert(x == 5) | Throw an exception if the assert condition is false. |
| breakpoint | breakpoint() | breakpoint() | Invoke the VM breakpoint trap routine. |
| deserialize | deserialize(object) | obj = deserialize(str) | Deserialize the string and construct and equivalent object. |
| dump | dump(...args) | dump(myObj) | Dump the contents of objects to the console. Useful for debugging. |
| eval | eval(script) | eval("var " + x + " = " + i) | Evaluate the given script. |
| exit | exit(status) | exit(0) | Immediately terminate the current script. |
| hashcode | hashcode(obj) | x = hashcode(myObj) | Return a unique numeric hash code for the object |
| print(...args) | print("Color is " + color) | Print a message to the console's stdout. | |
| serialize | serialize(object) | serialize(obj) | Serialize the given object into a string representation. |
| print(string, ...) | print("Hello World\n") | Print the given strings to the web server standard output. |
Types and Constructor Functions
Ejscript also defines system types as global constructor functions and class objects. The following objects are visible as global objects:
App, Application, Array, BinaryStream, Block, Boolean, ByteArray, Collection, Config, Controller, Cookie, Database, Date, Debug, Dispatcher, Error, Event, File, Function, GC, Host, Http, Iterator, JSON, Logger, Math, Memory, Name, Namespace, Null, Number, Object, Record, Reflect, RegExp, Request, Response, Session, Socket, Stream, String, TextStream, Timer, Type, Unix, UploadFile, Url, View, ViewConnector, Void, XML, XMLHttp and XMLList.