Let’s say I have these two functions:
function fnChanger(fn) {
fn = function() { sys.print('Changed!'); }
}
function foo() {
sys.print('Unchanged');
}
Now, if I call foo()
, I see Unchanged
, as expected. However, if I call fnChanger
first, I still see Unchanged
:
fnChanger(foo);
foo(); //Unchanged
Now, I assume this is because foo
is not being passed to fnChanger
by reference, but I may be wrong.
Why does fnChanger
not change foo
to print Changed!
?
Furthermore, how can I get fnChanger
to change foo
without too much messy syntax?
PS: I’m using node.js to test all this stuff, so that’s where the sys.print
comes from.
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