Home >>Javascript Programs >Print a fibonacci series in JavaScript
Print a fibonacci series in JavaScript
How to Print Fibonacci Series in Javascript
In this tutorial we will learn what is Fibonacci series and how to print Fibonacci series in javascript.
Fibonacci series defined the sequences of a number in recurrence relation. It generates a subsequent number by adding second and third term preceding number and not using the first term. It can be done as requested by the user until the number of terms.
In case of Fibonacci series like 0, 1, 1, 2, 3, 5, 8, 13, 21 etc.
Let's take an example:
<html>
<head>
<title>Fibonacci series in JavaScript</title>
<script>
function getFibonacci()
{
var limit = document.getElementById("limit").value;
fibonacciSeries(limit);
}
function fibonacciSeries(limit)
{
var first_num = 0, second_num = 1, next_num, outputElement;
if(limit != '')
{
outputElement = document.getElementById("output");
outputElement.innerHTML = "";
outputElement.innerHTML = "<br>";
outputElement.innerHTML += first_num + "<br>";
outputElement.innerHTML += second_num + "<br>";
while(limit > 2)
{
next_num = first_num + second_num;
first_num = second_num;
second_num = next_num;
outputElement.innerHTML += next_num + "<br>";
limit--;
}
}else{
document.getElementById("output").innerHTML = "Please enter a value!";
}
}
</script>
</head>
<body>
<h2>Fibonacci series</h2>
<h3>Enter the limit:</h3>
<input type="text" id="limit" />
<button onclick="getFibonacci()" >Print Fibonacci Series</button>
<h4>Output: <span id="output"></span></h4>
</body>
</html>
Output:
Fibonacci series
Enter the limit:
Javascript Programs
JavaScript code to check number is Perfect or not
JavaScript code to check number is Armstrong or not
JavaScript code to check whether a Number is Prime or Not
JavaScript code to find largest of three numbers
Check number is palindrome or not in JavaScript
How to build a calculator using JavaScript
Disable right click on webpage with JavaScript
Print a fibonacci series in JavaScript
How to copy text to clipboard with JavaScript
How to Get browser details through JavaScript
Create a forward and back buttons in JavaScript
How to Get the size of a file with JavaScript
How to find absolute value of a number in JavaScript
Create functions with default arguments in JavaScript
Find the larger of two numbers in JavaScript
Count occurrence of a particular character in a string in JavaScript
Get current date, month and year in JavaScript
How to parse number from string in JavaScript
Reverse an array in JavaScript
Dynamically add CSS class with JavaScript
How to get the extension of a file using JavaScript
Generate random number within a range in JavaScript
Display Input Text into Lowercase using JavaScript
Check/Uncheck all Checkboxes on Button Click using JavaScript
Convert a number into different base in JavaScript
Print value of all checked (selected) Checkboxes on Button click using JavaScript
No Sidebar ads