Formatted code

index.js

@@ -1,15 +1,15 @@
-function getWeekNumber(d) {
+function getWeekNumber (d) {
 // Copy date so don't modify original
-d = new Date(Date.UTC(d.getFullYear(), d.getMonth(), d.getDate()));
-// Set to nearest Thursday: current date + 4 - current day number
-// Make Sunday's day number 7
-d.setUTCDate(d.getUTCDate() + 4 - (d.getUTCDay()||7))
-// Get first day of year
-const yearStart = new Date(Date.UTC(d.getUTCFullYear(),0,1));
-// Calculate full weeks to nearest Thursday
-const weekNum = Math.ceil(( ( (d - yearStart) / 86400000) + 1)/7);
-// Return week number
-return weekNum;
+  d = new Date(Date.UTC(d.getFullYear(), d.getMonth(), d.getDate()))
+  // Set to nearest Thursday: current date + 4 - current day number
+  // Make Sunday's day number 7
+  d.setUTCDate(d.getUTCDate() + 4 - (d.getUTCDay() || 7))
+  // Get first day of year
+  const yearStart = new Date(Date.UTC(d.getUTCFullYear(), 0, 1))
+  // Calculate full weeks to nearest Thursday
+  const weekNum = Math.ceil((((d - yearStart) / 86400000) + 1) / 7)
+  // Return week number
+  return weekNum
 }
 
-module.exports = (date) => getWeekNumber(date || new Date());
+module.exports = (date) => getWeekNumber(date || new Date())

index.test.js

@@ -1,10 +1,10 @@
-const weekNum = require('./index.js');
+const weekNum = require('./index.js')
 
 test('that weekNum returns a value', () => {
-  expect(weekNum).not.toBeNull();
-});
+  expect(weekNum).not.toBeNull()
+})
 
 // new test added
 test('that weekNum returns a number', () => {
-  expect(weekNum).toBeDefined();
-});
+  expect(weekNum).toBeDefined()
+})

package.json

@@ -5,7 +5,7 @@
   "main": "index.js",
   "scripts": {
     "test": "jest",
-    "build":"npx parcel build index.js",
+    "build": "npx parcel build index.js",
     "lint": "npx standard --fix"
   },
   "repository": {
@@ -25,6 +25,8 @@
     "standard": "^14.3.1"
   },
   "standard": {
-    "env": [ "jest" ]
+    "env": [
+      "jest"
+    ]
   }
 }