Global Objects[]
These object are available in the global scope and can be accessed from anywhere.
global[]
The global namespace object.
In browsers, the top-level scope is the global scope. That means that in browsers if you're in the global scope var something will define a global variable. In Node this is different. The top-level scope is not the global scope; var something inside a Node module will be local to that module.
process[]
The process object. See the process object section.
require()[]
To require modules. See the Modules section.
require.resolve()[]
Use the internal require() machinery to look up the location of a module, but rather than loading the module, just return the resolved filename.
require.paths[]
An array of search paths for require(). This array can be modified to add custom paths.
Example: add a new path to the beginning of the search list
require.paths.unshift('/usr/local/node');
__filename[]
The filename of the script being executed. This is the absolute path, and not necessarily the same filename passed in as a command line argument.
Example: running node example.js from /Users/mjr
console.log(__filename); // /Users/mjr/example.js
__dirname[]
The dirname of the script being executed.
Example: running node example.js from /Users/mjr
console.log(__dirname); // /Users/mjr
module[]
A reference to the current module. In particular module.exports is the same as the exports object. Seesrc/node.js for more information.
setTimeout(cb, ms)[]
clearTimeout(t)[]
setInterval(cb, ms)[]
clearInterval(t)[]
The timer functions are global variables. See the timers section.