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You still have to write each composition operator separately; writing the code to compose null returns doesn't give you the code to compose IO. Only difference
by Veedrac 9y ago
You still have to write each composition operator separately; writing the code to compose null returns doesn't give you the code to compose IO. Only difference is whether they have separate names.
- dllthomas 9y agoThat's not the only difference. You get to reuse any code written using only those names (that interface).