JavaScript: For loop that will iterate from 0 to 15 to find even and odd numbers

Last update on May 30 2022 10:00:23 (UTC/GMT +8 hours)

JavaScript Conditional Statement and loops: Exercise-5 with Solution

Write a JavaScript for loop that will iterate from 0 to 15. For each iteration, it will check if the current number is odd or even, and display a message to the screen.

Sample Output:
"0 is even"
"1 is odd"
"2 is even"
----------
----------

Calculate a Even Number:

Even Numbers between 1 to 100:

Calculate a Odd Number:

Odd Numbers between 1 to 100:

Sample Solution:-

HTML Code:


<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>For loop that will iterate from 0 to 15</title>
</head>
<body>
  
</body>
</html>

JavaScript Code:


for (var x=0; x<=15; x++) {
        if (x === 0) {
                console.log(x +  " is even");
        }
        else if (x % 2 === 0) {
                console.log(x + " is even");   
        }
        else {
                console.log(x + " is odd");
        }
}

Sample Output:

0 is even
1 is odd
2 is even
3 is odd
4 is even
5 is odd
6 is even
7 is odd
8 is even
9 is odd
10 is even
11 is odd
12 is even
13 is odd
14 is even
15 is odd

Flowchart:

Live Demo:

See the Pen javascript-conditional-statements-and-loops-exercise-5 by w3resource (@w3resource) on CodePen.

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JavaScript: Tips of the Day

How to insert an item into an array at a specific index (JavaScript)?

What you want is the splice function on the native array object.

arr.splice(index, 0, item); will insert item into arr at the specified index (deleting 0 items first, that is, it's just an insert). In this example we will create an array and add an element to it into index 2:

var arr = []; arr[0] = "Jani"; arr[1] = "Hege"; arr[2] = "Stale"; arr[3] = "Kai Jim"; arr[4] = "Borge"; console.log(arr.join()); arr.splice(2, 0, "Lene"); console.log(arr.join());

Ref: https://bit.ly/2BXbp04