// multiple loop
for(i = 0, j = 10; i<=10, j>=0; i++, j--){
console.log(i, j);
}
// factorial 1-10
var factorial = 1;
for(n = 1; n <= 10; n++){
factorial *= n;
console.log("factorial of ", n , "is ", factorial);
}
// Number series
// s1 = 2 4 6 8 10 12 14 ...
var series = "";
var n;
for(i = 0; i < 10; i++){
n = i*2;
series = series + n + " ";
}
console.log("Series One = " + series);
// s2 = 1 4 7 10 13 16 ...
var series = "";
var n = 1;
for(i = 0; i < 10; i++){
n = n + 3;
series = series + n + " ";
}
console.log("Series Two = " + series);
// s3 = 0 3 8 15 24 35 45 ...
var series = "";
var n;
for(i = 1; i < 10; i++){
n = i*i-1;
series = series + n + " ";
}
console.log("Series Three = " + series);
// s4 = 1 4 3 8 5 12 7 16 ....
var series = "";
for(i = 1; i < 10; i++){
n = i;
if(n%2 == 0){
n = n*2;
}
series = series + n + " ";
}
console.log("Series Four = " + series);
// s5 = 0 1 1 2 3 5 8 13 ... fibonacci
var series = "0 1 ";
var x = 0;
var y = 1;
for(i = 0; i < 10; i++){
n = x+y;
x = y;
y = n;
series = series + n + " ";
}
console.log("Series Four = " + series);
// divisors
var n = 148;
var range = Math.ceil(Math.sqrt(n));
var divisors = "";
for(i=0; i<=range; i++){
if(n%i == 0){
if(i == n/i){
divisors += i + " ";
}else{
divisors += i + " " + (n/i) + " ";
}
}
}
console.log(divisors);
// Calendar
var monthName = "May";
var days = 31;
var startingday = 2;
console.log("Calendar of ",monthName,"\n");
console.log("Sun Mon Tue Wed Thu Fri Sat");
for(var i=0; i<5; i++){
var dayRow = "";
for(var j=1; j<=7; j++){
var currentDay = 7*i + j - startingday;
if(currentDay>days){
break;
}else if(currentDay<1){
currentDay = " ";
}
if(currentDay>9){
dayRow += currentDay + " ";
}else{
dayRow += currentDay + " ";
}
}
console.log(dayRow);
}
//Array
var fruits = ["Apple","Banana","Orange","Date","Grape"];
console.log(fruits[0]);
// last element
var lastIndex = fruits.length-1;
console.log(fruits[lastIndex]);
// slice, splice
var list = [
"sun", //0 = -7
"mon", //1 = -6
"tue", //2 = -5
"wed", //3 = -4
"thu", //4 = -3
"fri", //5 = -2
"sat" //6 = -1
];
var chunk = list.slice(1, 4);
console.log(list,chunk);
console.log("\n");
var chunk = list.splice(1, 4);
console.log(list,chunk);
// deep copy
var list = [
"sun", //0 = -7
"mon", //1 = -6
"tue", //2 = -5
"wed", //3 = -4
"thu", //4 = -3
"fri", //5 = -2
"sat" //6 = -1
];
var list2 = list;
list2[2] = "No Day";
console.log(list2, list);
// shallow copy
var v1 = 1;
var v2 = v1;
v2 = 2;
console.log(v1,v2);
// array merge
var list1 = ["sun","mon","tue"];
var list2 = ["wed","thu","Fri"];
var list = list1.concat(list2);
console.log(list);