Name: uniscope
Owner: Postman
Description: Evaluate a code within a controlled environment
Created: 2016-10-02 15:11:55.0
Updated: 2018-05-22 19:33:55.0
Pushed: 2018-05-22 19:33:56.0
Homepage: null
Size: 232
Language: JavaScript
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The goal of this module is to provide a uniform execution environment to a JavaScript code between browser and NodeJS.
For example, global functions and objects in NodeJS such as setImmediate and global is not easily available to the
script. And on the other hand, browser specific global properties such as requestAnimationFrame and window is not
available as well.
Please read this carefully to avoid any ambiguity during adopting this module.
This is not a module that converts NodeJS codes to browser or vice versa; that is the work of transformation tools such as browserify.
This tool is not a security sandbox since, it is easy to break out from this scope. This module simply provides uniformity to the scripts.
ample inside NodeJS
Scope = require('scope'), // use browserify or requireJS in browser!
myscope;
reate a new scope
ope = new Scope(globals, { // `globals` will be `window` in browser
eval: false, // specify whether eval is available inside sandbox
console: false, // specify whether native console is available
strict: false, // specify whether to run the script in strict mode
ignore: ['require'], // specify a list of global variables to ignore and pass-through to the script
block: ['process'] // specify a list of variables that should be blocked from being accessed
// provide an object with globals to be made available to the scripts
myGlobalVarName: "sample"
et a specific variable as global
ope.set('logger', function (msg) {
console.log(msg);
ow run a script
ope.exec('logger(myGlobalVarName)', function (err) {
err ? console.error(err.stack || err) : console.log('execution complete');
An asynchronous script will require an explicit call of a global function __exitscope. Note that setTimeout and
setInterval are not injected by default. You can easily do it yourself.
ope.set('setTimeout', global.setTimeout); // inject setTimeout
ote the 2nd parameter is set to `true` for async
ope.exec('setTimeout(function () { __exitscope(null); }, 1000)', true, function (err) {
err ? console.error(err.stack || err) : console.log('execution complete');
Scope.prototype.set:function(name:string, value)Scope.prototype.unset:function(name:string)Scope.prototype.import:function(obj:object)Scope.prototype.exec:function(code:string, [async:boolean,] callnack:function)Scope.prototype.reset:function(locals:boolean, context:boolean)These are the list of globals available to scripts in the scope
'Array', 'ArrayBuffer', 'Buffer', 'Boolean', 'DataView', 'Date', 'decodeURI', 'decodeURIComponent', 'encodeURI', 'encodeURIComponent', 'Error', 'escape', 'EvalError', 'Float32Array', 'Float64Array', 'Function', 'Infinity', 'Int8Array', 'Int16Array', 'Int32Array', 'isFinite', 'isNaN', 'JSON', 'Map', 'Math', 'NaN', 'Number', 'Object', 'parseFloat', 'parseInt', 'Proxy', 'Promise', 'RangeError', 'ReferenceError', 'Reflect', 'RegExp', 'Set', 'String', 'Symbol', 'SyntaxError', 'TypeError', 'Uint8Array', 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'undefined', 'unescape', 'URIError', 'WeakMap', 'WeakSet'