coffeescript - Why setInterval (->...) ,0 won't run as I expected? -


from coffeescript accelerated javascript development, chapter 6.6, question:

count = 10 h = setinterval (-> count--),100 (->) until count 0 clearinterval h console.log 'suprise!'

count won't 0,i try change 100 0,result same. stack setinterval in? when callback function (-> count--) run?

javascript strictly single-threaded.
asynchronous callbacks run after code finishes running.

your infinite loop never finishes running, setinterval callback never runs.


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