2.1 KiB
Global Objects
These object are available in all modules. Some of these objects aren't actually in the global scope but in the module scope - this will be noted.
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 isn't actually a global but rather local to each module.
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
__filename isn't actually a global but rather local to each module.
__dirname
The dirname of the script being executed.
Example: running node example.js from /Users/mjr
console.log(__dirname);
// /Users/mjr
__dirname isn't actually a global but rather local to each module.
module
A reference to the current module. In particular
module.exports is the same as the exports object. See src/node.js
for more information.
module isn't actually a global but rather local to each module.
setTimeout(cb, ms)
clearTimeout(t)
setInterval(cb, ms)
clearInterval(t)
The timer functions are global variables. See the timers section.