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Task/ABC-Problem/CoffeeScript/abc-problem.coffee

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+canMakeWord = (word="") ->
+    # Create a shallow clone of the master blockList
+    blocks = blockList.slice 0
+    # Check if blocks contains letter
+    checkBlocks = (letter) ->
+        # Loop through every remaining block
+        for block, idx in blocks
+            # If letter is in block, blocks.splice will return an array, which will evaluate as true
+            return blocks.splice idx, 1 if letter.toUpperCase() in block
+        return false
+    # Return true if there are no falsy values
+    return false not in (checkBlocks letter for letter in word)
+
+# Expect true, true, false, true, false, true, true, true
+console.log (canMakeWord word for word in ["A", "BARK", "BOOK", "TREAT", "COMMON", "squad", "CONFUSE", "STORM"])