perf(utils): replace pad with String.padStart (brianc#3371)

Author: cesco69

packages/pg/lib/utils.js

@@ -88,14 +88,6 @@ function prepareObject(val, seen) {
   return JSON.stringify(val)
 }
 
-function pad(number, digits) {
-  number = '' + number
-  while (number.length < digits) {
-    number = '0' + number
-  }
-  return number
-}
-
 function dateToString(date) {
   var offset = -date.getTimezoneOffset()
 
@@ -104,19 +96,19 @@ function dateToString(date) {
   if (isBCYear) year = Math.abs(year) + 1 // negative years are 1 off their BC representation
 
   var ret =
-    pad(year, 4) +
+    String(year).padStart(4, '0') +
     '-' +
-    pad(date.getMonth() + 1, 2) +
+    String(date.getMonth() + 1).padStart(2, '0') +
     '-' +
-    pad(date.getDate(), 2) +
+    String(date.getDate()).padStart(2, '0') +
     'T' +
-    pad(date.getHours(), 2) +
+    String(date.getHours()).padStart(2, '0') +
     ':' +
-    pad(date.getMinutes(), 2) +
+    String(date.getMinutes()).padStart(2, '0') +
     ':' +
-    pad(date.getSeconds(), 2) +
+    String(date.getSeconds()).padStart(2, '0') +
     '.' +
-    pad(date.getMilliseconds(), 3)
+    String(date.getMilliseconds()).padStart(3, '0')
 
   if (offset < 0) {
     ret += '-'
@@ -125,7 +117,7 @@ function dateToString(date) {
     ret += '+'
   }
 
-  ret += pad(Math.floor(offset / 60), 2) + ':' + pad(offset % 60, 2)
+  ret += String(Math.floor(offset / 60)).padStart(2, '0') + ':' + String(offset % 60).padStart(2, '0')
   if (isBCYear) ret += ' BC'
   return ret
 }
@@ -136,19 +128,19 @@ function dateToStringUTC(date) {
   if (isBCYear) year = Math.abs(year) + 1 // negative years are 1 off their BC representation
 
   var ret =
-    pad(year, 4) +
+    String(year).padStart(4, '0') +
     '-' +
-    pad(date.getUTCMonth() + 1, 2) +
+    String(date.getUTCMonth() + 1).padStart(2, '0') +
     '-' +
-    pad(date.getUTCDate(), 2) +
+    String(date.getUTCDate()).padStart(2, '0') +
     'T' +
-    pad(date.getUTCHours(), 2) +
+    String(date.getUTCHours()).padStart(2, '0') +
     ':' +
-    pad(date.getUTCMinutes(), 2) +
+    String(date.getUTCMinutes()).padStart(2, '0') +
     ':' +
-    pad(date.getUTCSeconds(), 2) +
+    String(date.getUTCSeconds()).padStart(2, '0') +
     '.' +
-    pad(date.getUTCMilliseconds(), 3)
+    String(date.getUTCMilliseconds()).padStart(3, '0')
 
   ret += '+00:00'
   if (isBCYear) ret += ' BC'