add Meteo part

resources/js/customPrototypes.ts

@@ -1,7 +1,15 @@
+const weekDays = ['lundi', 'mardi', 'mercredi', 'jeudi', 'vendredi', 'samedi', 'dimanche']
+
 interface Date {
+    getWeekDay(): string,
     toSQLDate(): string,
 }
 
 Date.prototype.toSQLDate = function (): string {
     return (new Date(this)).toISOString().split('T')[0]
 }
+
+Date.prototype.getWeekDay = function () {
+    const dayIndex = this.getDay() === 0 ? 6 : this.getDay() - 1
+    return weekDays[dayIndex]
+}