[CLEANUP] Made the code a little bit cleaner

functions/src/day10.ts

@@ -1,12 +1,9 @@
 import Day from "./day";
 import Utils from "./utils";
 
-const MISSING_CHARACTER_SCORES: {[key: string]: number} = {
-  ")": 1,
-  "]": 2,
-  "}": 3,
-  ">": 4,
-}
+const BRACKETS: {[key: string]: string} = { "(": ")", "[": "]", "{": "}", "<": ">" };
+const CORRUPT_CHARACTER_SCORES: {[key: string]: number} = { ")": 3, "]": 57, "}": 1197, ">": 25137 };
+const MISSING_CHARACTER_SCORES: {[key: string]: number} = { ")": 1, "]": 2, "}": 3, ">": 4 };
 
 class Day10 implements Day {
 
@@ -41,13 +38,7 @@ class Day10 implements Day {
   }
 
   getCorruptCharacterScore(char: string): number {
-    switch (char) {
-      case ")": return 3;
-      case "]": return 57;
-      case "}": return 1197;
-      case ">": return 25137;
-      default: throw Error(`Can't find points for character '${char}'`);
-    }
+    return CORRUPT_CHARACTER_SCORES[char];
   }
 
   checkSyntax(line: string): { error: "corrupt", expected: string, got: string } | { error: "incomplete", missing: string } | { error: "none" } {
@@ -55,18 +46,14 @@ class Day10 implements Day {
     const stack = [];
     for (const char of line) {
 
-      switch (char) {
-        case "(": stack.push(")"); break;
-        case "[": stack.push("]"); break;
-        case "{": stack.push("}"); break;
-        case "<": stack.push(">"); break;
-        default: {
-          const expected = stack[stack.length - 1];
-          if (expected === char) {
-            stack.pop();
-          } else {
-            return {error: "corrupt", expected, got: char};
-          }
+      if (char in BRACKETS) {
+        stack.push(BRACKETS[char]);
+      } else {
+        const expected = stack[stack.length - 1];
+        if (expected === char) {
+          stack.pop();
+        } else {
+          return {error: "corrupt", expected, got: char};
         }
       }
     }