Fix Linting in Index of Coincidence Operation

src/core/operations/IndexOfCoincidence.js

@@ -34,20 +34,20 @@ class IndexOfCoincidence extends Operation {
      * @returns {number}
      */
     run(input, args) {
-        const text = input.toLowerCase().replace(/[^a-z]/g, ''),
-              frequencies = new Array(26).fill(0),
-              alphabet = Utils.expandAlphRange("a-z")
+        const text = input.toLowerCase().replace(/[^a-z]/g, ""),
+            frequencies = new Array(26).fill(0),
+            alphabet = Utils.expandAlphRange("a-z");
         let coincidence = 0.00,
             density = 0.00,
             result = 0.00,
             i;
 
         for (i=0; i < alphabet.length; i++) {
-          frequencies[i] = text.count(alphabet[i]);
+            frequencies[i] = text.count(alphabet[i]);
         }
 
         for (i=0; i < frequencies.length; i++) {
-          coincidence += frequencies[i] * (frequencies[i] - 1);
+            coincidence += frequencies[i] * (frequencies[i] - 1);
         }
 
         density = frequencies.sum();
@@ -67,7 +67,7 @@ class IndexOfCoincidence extends Operation {
      * @returns {html}
      */
     present(ic) {
-    return `Index of Coincidence: ${ic}
+        return `Index of Coincidence: ${ic}
 Normalized: ${ic * 26}
 <br><canvas id='chart-area'></canvas><br>
 - 0 represents complete randomness (all characters are unique), whereas 1 represents no randomness (all characters are identical).
@@ -99,8 +99,8 @@ The graph shows the IC of the input data. A low IC generally means that the text
     }
   ]);
 </script>
-     `
-   }
+     `;
+    }
 
 }