add hw2

node_modules/pac-resolver/dist/weekdayRange.js

@@ -0,0 +1,91 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const util_1 = require("./util");
+const weekdays = ['SUN', 'MON', 'TUE', 'WED', 'THU', 'FRI', 'SAT'];
+/**
+ * Only the first parameter is mandatory. Either the second, the third, or both
+ * may be left out.
+ *
+ * If only one parameter is present, the function yeilds a true value on the
+ * weekday that the parameter represents. If the string "GMT" is specified as
+ * a second parameter, times are taken to be in GMT, otherwise in local timezone.
+ *
+ * If both wd1 and wd1 are defined, the condition is true if the current weekday
+ * is in between those two weekdays. Bounds are inclusive. If the "GMT" parameter
+ * is specified, times are taken to be in GMT, otherwise the local timezone is
+ * used.
+ *
+ * Valid "weekday strings" are:
+ *
+ *     SUN MON TUE WED THU FRI SAT
+ *
+ * Examples:
+ *
+ * ``` js
+ * weekdayRange("MON", "FRI")
+ * true Monday trhough Friday (local timezone).
+ *
+ * weekdayRange("MON", "FRI", "GMT")
+ * same as above, but GMT timezone.
+ *
+ * weekdayRange("SAT")
+ * true on Saturdays local time.
+ *
+ * weekdayRange("SAT", "GMT")
+ * true on Saturdays GMT time.
+ *
+ * weekdayRange("FRI", "MON")
+ * true Friday through Monday (note, order does matter!).
+ * ```
+ *
+ *
+ * @param {String} wd1 one of the weekday strings.
+ * @param {String} wd2 one of the weekday strings.
+ * @param {String} gmt is either the string: GMT or is left out.
+ * @return {Boolean}
+ */
+function weekdayRange(wd1, wd2, gmt) {
+    let useGMTzone = false;
+    let wd1Index = -1;
+    let wd2Index = -1;
+    let wd2IsGmt = false;
+    if ((0, util_1.isGMT)(gmt)) {
+        useGMTzone = true;
+    }
+    else if ((0, util_1.isGMT)(wd2)) {
+        useGMTzone = true;
+        wd2IsGmt = true;
+    }
+    wd1Index = weekdays.indexOf(wd1);
+    if (!wd2IsGmt && isWeekday(wd2)) {
+        wd2Index = weekdays.indexOf(wd2);
+    }
+    const todaysDay = getTodaysDay(useGMTzone);
+    let result;
+    if (wd2Index < 0) {
+        result = todaysDay === wd1Index;
+    }
+    else if (wd1Index <= wd2Index) {
+        result = valueInRange(wd1Index, todaysDay, wd2Index);
+    }
+    else {
+        result =
+            valueInRange(wd1Index, todaysDay, 6) ||
+                valueInRange(0, todaysDay, wd2Index);
+    }
+    return result;
+}
+exports.default = weekdayRange;
+function getTodaysDay(gmt) {
+    return gmt ? new Date().getUTCDay() : new Date().getDay();
+}
+// start <= value <= finish
+function valueInRange(start, value, finish) {
+    return start <= value && value <= finish;
+}
+function isWeekday(v) {
+    if (!v)
+        return false;
+    return weekdays.includes(v);
+}
+//# sourceMappingURL=weekdayRange.js.map