On 30/08/2014 17:04, Alexey Kachayev wrote:
Thread-first macro ->will insert list-of-listsas first argument for map,
which is definitely not what you expect. Use threading-last ->>instead.


I've never quite understood the distinction other than -> does everything top to bottom and ->> does the reverse. From what you're saying the choice also affects which position the argument is inserted? If so this presents a complication in that threading through several functions may require the argument to be inserted in different positions?

gvim

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