benchmark of scope manipulation methods in node.js

gistfile1.coffee

log = console.log
ben = require 'ben'
vm = require 'vm'
times = 10000

global.sum = (x, y) -> x + y

vm_script = vm.createScript 'console.log(typeof require);', 'vm_script'
new_function = new Function('locals', 'console.log(typeof require);')
applied = -> console.log(typeof require)

log 'typeof require:\n'

log 'runInThisContext:'
vm_script.runInThisContext()
log 'runInNewContext:'
vm_script.runInNewContext {console}
log 'new Function:'
new_function()
log 'apply:'
applied.apply()

vm_script = vm.createScript 'sum(4, 5);', 'vm_script'
new_function = new Function('locals', 'var sum = locals.sum; return sum(4, 5);')
applied = -> @sum 4, 5

log '\nBenchmark:\n'

log 'runInThisContext:', ben times, -> vm_script.runInThisContext()
log 'runInNewContext:', ben times, -> vm_script.runInNewContext {sum}
log 'new Function:', ben times, -> new_function {sum}
log 'apply:', ben times, -> applied.apply {sum}