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catch does not create its own lexical environment · Issue #2422 · jashkenas/coffeescript · GitHub
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Description
... which causes us to leak globals:
$ coffee -bsp
try fn() catch e then
e = 0
try {
fn();
} catch (e) {
}
e = 0;
e
should be let-scoped to the catch block (see ES5 §12.14). The e
outside should be seen as the first assignment to e
and therefore auto-declared at the top of its closest containing scope.
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