javascript - Functional Programming: Printing to JS console in Chrome -


i'm implementing functional programming eloquent javascript js console in google chrome. there's function loops through each element in array , performs given action in initial parameter said element.

function foreach(array, action) {     (var = 0; < array.length; i++)        action(array[i]); }     foreach(["wampeter", "foma", "granfalloon"], console.log);

i expecting console print out each item in array, in red:

typeerror: 'illegal invocation'

is there way can print on js console or should use else compile code?

when pass foreach, function losing reference this value (the console object). following should work:

function foreach(array, action) {     (var = 0; < array.length; i++)        action(array[i]); }     foreach(["wampeter", "foma", "granfalloon"], console.log.bind(console));

http://jsfiddle.net/th2a5/

for browsers don't support bind, can use shim available on mdn documentation page


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