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lulunac27a · Jun 24, 2024 · 97ed4f5 · 97ed4f5
1 parent ddaa8d6
commit 97ed4f5
Showing 1 changed file with 48 additions and 47 deletions.
diff --git a/datetime-jsp/datetime.js b/datetime-jsp/datetime.js
@@ -1,56 +1,57 @@
-let year = document.querySelector("#year");
-let month = document.querySelector("#month");
-let day = document.querySelector("#day");
-let hour = document.querySelector("#hour");
-let minute = document.querySelector("#minute");
-let second = document.querySelector("#second");
-let millisecond = document.querySelector("#millisecond");
-let microsecond = document.querySelector("#microsecond");
-let nanosecond = document.querySelector("#nanosecond");
+let year = document.querySelector("#year"); //year input value
+let month = document.querySelector("#month"); //month input value
+let day = document.querySelector("#day"); //day input value
+let hour = document.querySelector("#hour"); //hour input value
+let minute = document.querySelector("#minute"); //minute input value
+let second = document.querySelector("#second"); //second input value
+let millisecond = document.querySelector("#millisecond"); //millisecond input value
+let microsecond = document.querySelector("#microsecond"); //microsecond input value
+let nanosecond = document.querySelector("#nanosecond"); //nanosecond input value
 
 function setCurrentDate() {
-    const currentDate = new Date();
-    const currentYear = currentDate.getFullYear();
-    const currentMonth = currentDate.getMonth() + 1; //Add 1 to month because 0 is January in JavaScript and 1 in Java
-    const currentDay = currentDate.getDate();
-    const currentHour = currentDate.getHours();
-    const currentMinute = currentDate.getMinutes();
-    const currentSecond = currentDate.getSeconds();
-    const currentMillisecond = currentDate.getMilliseconds();
-    year.value = currentYear; //set the input values to current local date and time
-    month.value = currentMonth;
-    day.value = currentDay;
-    hour.value = currentHour;
-    minute.value = currentMinute;
-    second.value = currentSecond;
-    millisecond.value = currentMillisecond;
-    microsecond.value = 0;
-    nanosecond.value = 0;
+  const currentDate = new Date(); //set current local date and time
+  const currentYear = currentDate.getFullYear();
+  const currentMonth = currentDate.getMonth() + 1; //Add 1 to month because 0 is January in JavaScript and 1 in Java
+  const currentDay = currentDate.getDate();
+  const currentHour = currentDate.getHours();
+  const currentMinute = currentDate.getMinutes();
+  const currentSecond = currentDate.getSeconds();
+  const currentMillisecond = currentDate.getMilliseconds();
+  year.value = currentYear; //set the input values to current local date and time
+  month.value = currentMonth;
+  day.value = currentDay;
+  hour.value = currentHour;
+  minute.value = currentMinute;
+  second.value = currentSecond;
+  millisecond.value = currentMillisecond;
+  microsecond.value = 0; //JavaScript doesn't support Date object with microseconds or nanoseconds, so set them to 0
+  nanosecond.value = 0;
 }
 
 function setCurrentUtcDate() {
-    const currentDate = new Date();
-    const currentUtcYear = currentDate.getUTCFullYear();
-    const currentUtcMonth = currentDate.getUTCMonth() + 1;
-    const currentUtcDay = currentDate.getUTCDate();
-    const currentUtcHour = currentDate.getUTCHours();
-    const currentUtcMinute = currentDate.getUTCMinutes();
-    const currentUtcSecond = currentDate.getUTCSeconds();
-    const currentUtcMillisecond = currentDate.getUTCMilliseconds();
-    year.value = currentUtcYear; //set the input values to current UTC date and time
-    month.value = currentUtcMonth;
-    day.value = currentUtcDay;
-    hour.value = currentUtcHour;
-    minute.value = currentUtcMinute;
-    second.value = currentUtcSecond;
-    millisecond.value = currentUtcMillisecond;
-    microsecond.value = 0;
-    nanosecond.value = 0;
+  const currentDate = new Date(); //set current UTC date and time
+  const currentUtcYear = currentDate.getUTCFullYear();
+  const currentUtcMonth = currentDate.getUTCMonth() + 1;
+  const currentUtcDay = currentDate.getUTCDate();
+  const currentUtcHour = currentDate.getUTCHours();
+  const currentUtcMinute = currentDate.getUTCMinutes();
+  const currentUtcSecond = currentDate.getUTCSeconds();
+  const currentUtcMillisecond = currentDate.getUTCMilliseconds();
+  year.value = currentUtcYear; //set the input values to current UTC date and time
+  month.value = currentUtcMonth;
+  day.value = currentUtcDay;
+  hour.value = currentUtcHour;
+  minute.value = currentUtcMinute;
+  second.value = currentUtcSecond;
+  millisecond.value = currentUtcMillisecond;
+  microsecond.value = 0;
+  nanosecond.value = 0;
 }
 
 function getDaysInMonth() {
-    day.max = new Date(year.value, month.value, 0).getDate();
-    if (day.value > day.max) {
-        day.value = day.max;
-    }
+  day.max = new Date(year.value, month.value, 0).getDate(); //calculate days in a month in specified month and year
+  if (day.value > day.max) {
+    //if day value is more than number of days in a month
+    day.value = day.max; //set day value to number of days in a month
+  }
 }