Update array_strings_2.js

array_strings_2.js

@@ -5,6 +5,16 @@ Output: 31
 Input: 895796
 Output: 695798
 
+
+function revDigits(num){
+var digits = num.toString().split('');
+var arrDigits = digits.map(Number)
+let n=arrDigits[0];
+arrDigits[0]=arrDigits[arrDigits.length-1];
+arrDigits[arrDigits.length-1]=n;
+let k=arrDigits.join('');
+return k;
+}
 ---------------
 
 2. Write down a function which will receive 2 arrays of numbers merge them and return second biggest element of merged array.
@@ -14,7 +24,14 @@ Output: 7
 
 Input [1, 4]; [3, 6]
 Output: 4
-
+
+  const arr_1=[];
+const arr_2=[];
+function bigNumber_2(arr_1,arr_2){
+arr_1=arr_1.concat(arr_2);
+arr_1.sort((a,b)=>a-b);
+return arr_1[arr_1.length-2]; 
+}
 ---------------
 
 3. Write down a function which will receive an array of numbers and remove duplicates from it (using Set)
@@ -24,6 +41,10 @@ Output: [1, 3, 5, 2, 6]
 Input: [1, 1, 1, 3]
 Output: [1, 3]
 
+function remDoubleNum(arr){
+const del = [... new Set(arr)];
+return del;
+}
 ---------------
 
 4. Create an implementation of the rotational cipher, also sometimes called the Caesar cipher. 
@@ -37,6 +58,18 @@ The letter is shifted for as many values as the value of the key.
 
   Input: Hello world, 7
   Output Olssv dvysk
+
+
+  function caesarShift(text, shift) {
+	var result = "";
+	for (var i = 0; i < text.length; i++) {
+		var c = text.charCodeAt(i);
+		if      (65 <= code && code <=  90) result += String.fromCharCode((code - 65 + shift) % 26 + 65);  
+		else if (97 <= code && code <= 122) result += String.fromCharCode((code - 97 + shift) % 26 + 97);  
+		else  result += text.charAt(i);  
+	}
+	return result;
+}
 
 2. Decode function
   Input: Olssv dvysk, 7
@@ -51,6 +84,12 @@ The letter is shifted for as many values as the value of the key.
 Example: if current time is 23:59:45 function should print 15
 Example: if current time is 23:50:45 function should print 555
 
+
+function GetWeekDays (y,m,d) {
+     var date= new Date(y,m,d);
+     var days=["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturdy"];
+     return days[date.getDay()];
+ }
 ---------------
 
 6. Write down a function which will print week day based on provided day.
@@ -59,3 +98,16 @@ Output: "Monday"
 
 Input: "2014/09/12"
 Output: "Friday"
+
+function myFunction() {
+    var d = new Date();
+    let sum=Number;
+    let k=d.getHours();
+    if(k > 23) {
+        return "Too late";
+    }
+    else {
+     sum= (23-d.getHours())*3600 + (59-d.getMinutes())*60 +(60-d.getSeconds());   
+}
+return sum;
+}