2.0.0 • Published 8 years ago
system.global v2.0.0
An ECMAScript spec-compliant polyfill/shim for global
. Invoke its "shim" method to shim global
if it is unavailable.
This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the spec proposal.
Most common usage:
var global = require('system.global')(); // returns native method if compliant
/* or */
var global = require('system.global/polyfill')(); // returns native method if compliant
Example
var assert = require('assert');
// the below function is not CSP-compliant, but reliably gets the
// global object in sloppy mode in every engine.
var getGlobal = Function('return this');
assert.equal(global, getGlobal());
/* when `global` is not present */
var shimmedGlobal = require('system.global').shim();
/* or */
var shimmedGlobal = require('system.global/shim')();
assert.equal(shimmedGlobal, global);
assert.equal(shimmedGlobal, getGlobal());
/* when `global` is present */
var shimmedGlobal = require('system.global').shim();
assert.equal(shimmedGlobal, global);
assert.equal(shimmedGlobal, getGlobal());
Tests
Simply clone the repo, npm install
, and run npm test