removing variable usage as variable used only once, unnecessary use of language vocabulary, test case repeated is duplicate

Author: chiragcredr

src/Arrays/index.js

@@ -1,14 +1,12 @@
-export const titleCaseString = data => {
-  const x = data.toLowerCase();
-  const pp = x.split(' ');
-  return pp.map(word => word.charAt(0).toUpperCase() + word.slice(1)).join(' ');
-};
+export const titleCaseString = data =>
+  data
+    .toLowerCase()
+    .split(' ')
+    .map(word => `${word.charAt(0).toUpperCase()}${word.slice(1)}`)
+    .join(' ');
 
-export const convertStringToArray = (para, removeSpaces = false) => {
-  const arr = [...para];
-  return (removeSpaces) ?
-    arr.filter(item => item !== ' ') : arr;
-};
+export const convertStringToArray = (para, removeSpaces = false) =>
+  removeSpaces ? [...para].filter(item => item !== ' ') : [...para];
 
 export const countInstanceInArray = arr => arr.reduce((obj, item) => {
   if (!obj[item]) obj[item] = 0;

src/__tests__/index.test.js

@@ -19,10 +19,6 @@ test('Capitalize First Character after Space', () => (
   expect(titleCaseString('hello world')).toBe('Hello World')
 ));
 
-test('Capitalize First Character after Space', () => (
-  expect(titleCaseString('hello world')).toBe('Hello World')
-));
-
 // String to Array //
 
 test('Convert String to Array', () => (