vm.js

var vm = require('vm');

function printError(e) {
    // console.log(e instanceof Error, e, e.stack);
    console.log(e instanceof Error);
}

console.log('====== Example 1 ======');

try {
    vm.runInNewContext('throw new Error("nooooo")');
} catch(e) {
    printError(e);
}

console.log('====== Example 2 ======');

try {
    vm.runInThisContext('throw new Error("nooooo")');
} catch(e) {
    printError(e);
}

console.log('====== Example 3 ======');

try {
    vm.runInNewContext('throw new Error("nooooo")', {Error: Error}, {displayErrors: false});
} catch(e) {
    printError(e);
}

console.log('====== Example 4 ======');

try {
    var sandbox = {Error: Error};
    vm.createContext(sandbox);
    vm.runInContext('throw new Error("nooooo")', sandbox, {displayErrors: false});
} catch(e) {
    printError(e);
}