Test accent

index.js

@@ -1,4 +1,5 @@
 const sortby = (properties) => (a, b) => {
+  // 'base' treat accent as there base character
   const collator = new Intl.Collator('en', { numeric: true, sensitivity: 'base' })
 
   // if items is {prop1:value1, prop2:value2}

lib/sortby.test.js

@@ -50,6 +50,13 @@ test('sort by new descending', () => {
   ])
 })
 
+test('sort with accent, should not change order', () => {
+  const data = [{ name: 'è' }, { name: 'é' }, { name: 'e' }]
+
+  const result = data.sort(sortby(['name']))
+
+  equal(result, [{ name: 'è' }, { name: 'é' }, { name: 'e' }])
+})
 
 import { runifmain, summaryreporter, errorreporter } from 'metaltest'
 await runifmain(import.meta, () => test.run(summaryreporter(), errorreporter()))