Moved helper functions outside export default fn in TimeInterval.

src/pages/components/CertificateTimeInterval.js

@@ -3,36 +3,36 @@ import styled from 'styled-components'
 
 import StartEndSpacerSVG from '../../assets/images/start-end-spacer-bg.svg'
 
-export default function CertificateTimeInterval({ sTimestamp, eTimestamp }) {
-  function calcTimeInterval(s, e) {
-    const i = new Date(e) - new Date(s)
-    return i
-  }
-  function convIntervalToHoursAndMins(i) {
-    const m = Math.floor(i / (1000 * 60)) % 60
-    const h = Math.floor(i / (1000 * 60 * 60))
-    const str = `${h.toString().padStart(2, '0')}H ${m.toString().padStart(2, '0')}M`
-    return str
-  }
-  function convIntervalToMonthsAndDays(i) {
-    let d = Math.floor(i / (1000 * 60 * 60 * 24)) % 30
-    let m = Math.floor(i / (1000 * 60 * 60 * 24 * 30))
-    let str = `${m.toString().padStart(2, '0')}m ${d.toString().padStart(2, '0')}d`
-    if (m > 99) {
-      d = 0
-      m = 99
-      str = `>${m.toString().padStart(2, '0')}m${d.toString().padStart(2, '0')}d`
-    }
-    return str
+const calcTimeInterval = (s, e) => {
+  return new Date(e) - new Date(s)
+}
+const convIntervalToHoursAndMins = (i) => {
+  const m = Math.floor(i / (1000 * 60)) % 60
+  const h = Math.floor(i / (1000 * 60 * 60))
+  const str = `${h.toString().padStart(2, '0')}H ${m.toString().padStart(2, '0')}M`
+  return str
+}
+const convIntervalToMonthsAndDays = (i) => {
+  let d = Math.floor(i / (1000 * 60 * 60 * 24)) % 30
+  let m = Math.floor(i / (1000 * 60 * 60 * 24 * 30))
+  let str = `${m.toString().padStart(2, '0')}m ${d.toString().padStart(2, '0')}d`
+  if (m > 99) {
+    d = 0
+    m = 99
+    str = `>${m.toString().padStart(2, '0')}m${d.toString().padStart(2, '0')}d`
   }
-  function convIntervalToStr(s, e) {
-    const i = calcTimeInterval(s, e)
-    if (i > 1000 * 24 * 60 * 60) {
-      return convIntervalToMonthsAndDays(i)
-    } else {
-      return convIntervalToHoursAndMins(i)
-    }
+  return str
+}
+const convIntervalToStr = (s, e) => {
+  const i = calcTimeInterval(s, e)
+  if (i > 1000 * 24 * 60 * 60) {
+    return convIntervalToMonthsAndDays(i)
+  } else {
+    return convIntervalToHoursAndMins(i)
   }
+}
+
+export default function CertificateTimeInterval({ sTimestamp, eTimestamp }) {
   return (
     <>
       <FixedWidthSmallDiv>