loop.coffee

###
# $ coffee -c loop.coffee ; nodejs loop.js
###

measure = (title, f) ->
    begin = new Date()
    f()
    console.log "#{title}: #{(new Date() - begin)}"

times = 10000000
array = [1..times]


# AVG: 395
things = undefined
measure "Array.push", ->
    things = []
    for factor in array
        things.push factor
    # To avoid that coffee creates an anonymous array
    # for the return value of this function.
    return things

# AVG: 360
things = undefined
measure "inline", ->
    things = (x for x in array)

loop2.coffee

###
# $ coffee -c loop.coffee ; nodejs loop.js
###

measure = (title, f) ->
    begin = new Date()
    f()
    console.log "#{title}: #{(new Date() - begin)}"

times = 10000000
array = [1..times]


# AVG: 400
things = undefined
measure "inline", ->
    things = (x for x in array)

# AVG: 355
things = undefined
measure "Array.push", ->
    things = []
    for factor in array
        things.push factor
    # To avoid that coffee creates an anonymous array
    # for the return value of this function.
    return things