dynamic 0.0.5 → 0.0.6

raw patch · 3 files changed

+83/−1 lines, 3 filesPVP ok

version bump matches the API change (PVP)

API changes (from Hackage documentation)

Files

• README.md +78/−0
• dynamic.cabal +1/−1
• src/Dynamic.hs +4/−0

@@ -240,3 +240,81 @@ ```  That passes [the dynamic typing test](https://stackoverflow.com/a/27791387).++## Mix and match your regular Haskell functions++Here's an exporation of my Monzo (bank account) data.++Load up the JSON output:++``` haskell+> monzo <- fromJsonFile "monzo.json"+```haskell++Preview what's in it:++```haskell+> take 100 $ show monzo+"{\n    \"transactions\": [\n        {\n            \"amount\": 10000,\n            \"dedupe_id\": \"com.monzo.f"+> toKeys monzo+["transactions"]+```++OK, just transactions. How many?++```haskell+> length $ toList $ monzo!"transactions"+119+```++What keys do I get in each transaction?++```haskell+> toKeys $ head $ toList $ monzo!"transactions"+["amount","dedupe_id","attachments","can_be_made_subscription","fees","created","category","settled","can_split_the_bill","can_add_to_tab","originator","currency","include_in_spending","merchant","can_be_excluded_from_breakdown","international","counterparty","scheme","local_currency","metadata","id","labels","updated","account_balance","is_load","account_id","notes","user_id","local_amount","description"]+```++What's in `amount`?++```haskell+> (!"amount") $ head $ toList $ monzo!"transactions"+10000+```++Looks like pennies, let's divide that by 100. What's the total +/- sum+of my last 5 transactions?++```haskell+> (/100) $ (!"amount") $ head $ toList $ monzo!"transactions"+100+> map ((/100) . (!"amount")) $ toList $ monzo!"transactions"+> sum $ map ((/100) . (!"amount")) $ take 5 $ toList $ monzo!"transactions"+468.65+```++What categories are there?++```haskell+> nub $ map (!"category") $ toList $ monzo!"transactions"+["general","entertainment","groceries","eating_out","shopping","expenses","bills","personal_care","cash"]+```++How many transactions did I do in each category?++```haskell+> fromDict $ M.toList $ foldl (\cats cat -> M.insertWith (+) cat 1 cats) mempty $ map (!"category") $ toList $ monzo!"transactions"+{+    "personal_care": 2,+    "entertainment": 8,+    "bills": 3,+    "general": 58,+    "groceries": 16,+    "shopping": 8,+    "expenses": 19,+    "eating_out": 4,+    "cash": 1+}+>+```++Cool!

@@ -1,5 +1,5 @@ name:                dynamic-version:             0.0.5+version:             0.0.6 synopsis:            A dynamic type for Haskell description:         Want to do dynamically typed programming in Haskell sometimes? Here you go! homepage:            https://github.com/chrisdone/dynamic#readme

@@ -106,6 +106,10 @@ instance Real Dynamic where   toRational = toRational . toDouble +instance Fractional Dynamic where+  fromRational = Double . fromRational+  recip = Double . recip . toDouble+ -- | Implemented via 'Double'. instance Integral Dynamic where   toInteger = toInteger . toInt