countWeekDaysBetween

snippets/countWeekDaysBetween.md

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+---
+title: countWeekDaysBetween
+tags: date, intermediate
+---
+
+Returns the weekdays count between two dates.
+
+- Takes startDate and endDate as inputs.
+- Executes a while loop if startDate is less than endDate and increments count if startDate does not fall on a weekend.
+- Adds one day to startDate in an iteration and the loop exits when startDate becomes equal to endDate.
+
+```js
+const countWeekDaysBetween = (startDate, endDate) => {
+  let count = 0;
+  while (startDate < endDate) {
+    if (startDate.getDay() !== 0 && startDate.getDay() !== 6) {
+      count++;
+    }
+    startDate = new Date(startDate.setDate(startDate.getDate() + 1));
+  }
+  return count;
+}
+```
+
+```js
+countWeekDaysBetween(new Date("Oct 09, 2020"), new Date("Oct 14, 2020")); // 3
+```