diff --git a/exercises/ocr-numbers/example.js b/exercises/ocr-numbers/example.js
index 489cda273b..b86a51e4ad 100644
--- a/exercises/ocr-numbers/example.js
+++ b/exercises/ocr-numbers/example.js
@@ -40,50 +40,44 @@ const PATTERNS = {
     ' _|',
     '   '],
 };
-export default class Parser {
-  // eslint-disable-next-line class-methods-use-this
-  convert(text) {
-    return Parser.splitIntoRows(text).map(Parser.valuesInRow).join(',');
-  }
-
-  static valuesInRow(row) {
-    return Parser.splitIntoDigits(row).map(Parser.getDigit).join('');
-  }
 
-  static splitIntoRows(text) {
-    const rows = [];
-    const lines = text.split('\n');
-    for (let rowNumber = 0; rowNumber < lines.length; rowNumber += 4) {
-      let row = '';
-      for (let rowLine = 0; rowLine < 4; rowLine += 1) {
-        row += `${lines[rowNumber + rowLine]}\n`;
-      }
-      rows.push(row.slice(0, -1));
+const splitIntoRows = (text) => {
+  const rows = [];
+  const lines = text.split('\n');
+  for (let rowNumber = 0; rowNumber < lines.length; rowNumber += 4) {
+    let row = '';
+    for (let rowLine = 0; rowLine < 4; rowLine += 1) {
+      row += `${lines[rowNumber + rowLine]}\n`;
     }
-    return rows;
+    rows.push(row.slice(0, -1));
   }
+  return rows;
+};
 
-  static splitIntoDigits(row) {
-    const digits = [];
-    const rows = row.split('\n');
-    for (let digitNumber = 0; digitNumber < rows[0].length; digitNumber += 3) {
-      let digit = '';
-      for (let rowNumber = 0; rowNumber < rows.length; rowNumber += 1) {
-        digit += rows[rowNumber].substr(digitNumber, 3);
-      }
-      digits.push(digit);
+const splitIntoDigits = (row) => {
+  const digits = [];
+  const rows = row.split('\n');
+  for (let digitNumber = 0; digitNumber < rows[0].length; digitNumber += 3) {
+    let digit = '';
+    for (let rowNumber = 0; rowNumber < rows.length; rowNumber += 1) {
+      digit += rows[rowNumber].substr(digitNumber, 3);
     }
-    return digits;
+    digits.push(digit);
   }
+  return digits;
+};
 
-  static getDigit(text) {
-    const digit = Object
-      .values(PATTERNS)
-      .map(x => x.join(''))
-      .indexOf(text);
-    if (digit === -1) {
-      return '?';
-    }
-    return digit;
+const getDigit = (text) => {
+  const digit = Object
+    .values(PATTERNS)
+    .map(x => x.join(''))
+    .indexOf(text);
+  if (digit === -1) {
+    return '?';
   }
-}
+  return digit;
+};
+
+const valuesInRow = row => splitIntoDigits(row).map(getDigit).join('');
+
+export const convert = text => splitIntoRows(text).map(valuesInRow).join(',');
diff --git a/exercises/ocr-numbers/ocr-numbers.spec.js b/exercises/ocr-numbers/ocr-numbers.spec.js
index 7c18df842d..48e5eb74c6 100644
--- a/exercises/ocr-numbers/ocr-numbers.spec.js
+++ b/exercises/ocr-numbers/ocr-numbers.spec.js
@@ -1,10 +1,8 @@
-import Ocr from './ocr-numbers';
-
-const ocr = new Ocr();
+import { convert } from './ocr-numbers';
 
 describe('ocr', () => {
   test('recognizes zero', () => {
-    expect(ocr.convert(
+    expect(convert(
       ' _ \n'
       + '| |\n'
       + '|_|\n'
@@ -13,7 +11,7 @@ describe('ocr', () => {
   });
 
   xtest('recognizes one', () => {
-    expect(ocr.convert(
+    expect(convert(
       '   \n'
       + '  |\n'
       + '  |\n'
@@ -22,7 +20,7 @@ describe('ocr', () => {
   });
 
   xtest('recognizes two', () => {
-    expect(ocr.convert(
+    expect(convert(
       ' _ \n'
       + ' _|\n'
       + '|_ \n'
@@ -31,7 +29,7 @@ describe('ocr', () => {
   });
 
   xtest('recognizes three', () => {
-    expect(ocr.convert(
+    expect(convert(
       ' _ \n'
       + ' _|\n'
       + ' _|\n'
@@ -40,7 +38,7 @@ describe('ocr', () => {
   });
 
   xtest('recognizes four', () => {
-    expect(ocr.convert(
+    expect(convert(
       '   \n'
       + '|_|\n'
       + '  |\n'
@@ -49,7 +47,7 @@ describe('ocr', () => {
   });
 
   xtest('recognizes five', () => {
-    expect(ocr.convert(
+    expect(convert(
       ' _ \n'
       + '|_ \n'
       + ' _|\n'
@@ -58,7 +56,7 @@ describe('ocr', () => {
   });
 
   xtest('recognizes six', () => {
-    expect(ocr.convert(
+    expect(convert(
       ' _ \n'
       + '|_ \n'
       + '|_|\n'
@@ -67,7 +65,7 @@ describe('ocr', () => {
   });
 
   xtest('recognizes seven', () => {
-    expect(ocr.convert(
+    expect(convert(
       ' _ \n'
       + '  |\n'
       + '  |\n'
@@ -76,7 +74,7 @@ describe('ocr', () => {
   });
 
   xtest('recognizes eight', () => {
-    expect(ocr.convert(
+    expect(convert(
       ' _ \n'
       + '|_|\n'
       + '|_|\n'
@@ -85,7 +83,7 @@ describe('ocr', () => {
   });
 
   xtest('recognizes nine', () => {
-    expect(ocr.convert(
+    expect(convert(
       ' _ \n'
       + '|_|\n'
       + ' _|\n'
@@ -94,7 +92,7 @@ describe('ocr', () => {
   });
 
   xtest('recognizes ten', () => {
-    expect(ocr.convert(
+    expect(convert(
       '    _ \n'
       + '  || |\n'
       + '  ||_|\n'
@@ -103,7 +101,7 @@ describe('ocr', () => {
   });
 
   xtest('identifies garble', () => {
-    expect(ocr.convert(
+    expect(convert(
       '   \n'
       + '| |\n'
       + '| |\n'
@@ -112,7 +110,7 @@ describe('ocr', () => {
   });
 
   xtest('converts 110101100', () => {
-    expect(ocr.convert(
+    expect(convert(
       '       _     _        _  _ \n'
       + '  |  || |  || |  |  || || |\n'
       + '  |  ||_|  ||_|  |  ||_||_|\n'
@@ -121,7 +119,7 @@ describe('ocr', () => {
   });
 
   xtest('identifies garble mixed in', () => {
-    expect(ocr.convert(
+    expect(convert(
       '       _     _           _ \n'
       + '  |  || |  || |     || || |\n'
       + '  |  | _|  ||_|  |  ||_||_|\n'
@@ -130,7 +128,7 @@ describe('ocr', () => {
   });
 
   xtest('converts 1234567890', () => {
-    expect(ocr.convert(
+    expect(convert(
       '    _  _     _  _  _  _  _  _ \n'
       + '  | _| _||_||_ |_   ||_||_|| |\n'
       + '  ||_  _|  | _||_|  ||_| _||_|\n'
@@ -139,7 +137,7 @@ describe('ocr', () => {
   });
 
   xtest('converts 123 456 789', () => {
-    expect(ocr.convert(
+    expect(convert(
       '    _  _ \n'
       + '  | _| _|\n'
       + '  ||_  _|\n'