Split a number

Last Updated: 29-01-2020

Split a number into individual digits using JavaScript

In this article, we will get some input from user by using <input> element and the task is to split the given number into the individual digits with the help of JavaScript. There two approaches that are discussed below:

Approach 1: First take the element from input element in string format (No need to convert it to Number) and declare an empty array(var res). Visit every character of the string in a loop on the length of the string and push the character in the array(res) by using push() method.

  • Example: This example implements the above approach.

<!DOCTYPE HTML> 
<html> 

<head> 
	<title> 
		Split a number into individual 
		digits using JavaScript 
	</title> 
	
	<style> 
		body { 
			text-align: center; 
		} 
			
		h1 { 
			color: green; 
		} 
		#geeks { 
			color: green; 
			font-size: 29px; 
			font-weight: bold; 
		} 
	</style> 
</head> 

<body> 
	<h1>GeeksforGeeks</h1> 
	
	<p> 
		Type the number and click on the button 
		to perform the operation. 
	</p> 
	
	Type here:<input id = "input" /> 
		
	<br><br> 
	
	<button onclick = "GFG_Fun();"> 
		click here 
	</button> 
	
	<p id = "geeks"></p> 
	
	<script> 
		var down = document.getElementById('geeks'); 
		
		function GFG_Fun() { 
			var str = document.getElementById('input').value; 
			res = []; 
			
			for (var i = 0, len = str.length; i < len; i += 1) { 
				res.push(+str.charAt(i)); 
			} 
			
			down.innerHTML = "[" + res + "]"; 
		} 
	</script> 
</body> 

</html>

Approach 2: First take the element from input element in string format (No need to convert it to Number) and declare an empty array(var res). Split the string by using split() method on (”) and store the spitted result in the array(str).

  • Example: This example implements the above approach

<!DOCTYPE HTML> 
<html> 

<head> 
	<title> 
		Split a number into individual digits 
	</title> 
	
	<style> 
		body { 
			text-align: center; 
		} 
		
		h1 { 
			color: green; 
		} 
		
		#geeks { 
			color: green; 
			font-size: 29px; 
			font-weight: bold; 
		} 
	</style> 
</head> 

<body> 
	<h1>GeeksforGeeks</h1> 
	
	<p> 
		Type the number and click on the 
		button to perform the operation. 
	</p> 
	
	Type here: <input id="input" /> 
	
	<br><br> 
	
	<button onclick="GFG_Fun();"> 
		click here 
	</button> 
	
	<p id="geeks"></p> 
	
	<script> 
		var down = document.getElementById('geeks'); 

		function GFG_Fun() { 
			var n = document.getElementById('input').value; 
			var str = n.split(''); 
			down.innerHTML = "[" + str + "]"; 
		} 
	</script> 
</body> 

</html>

Reference : https://www.geeksforgeeks.org/split-a-number-into-individual-digits-using-javascript/?ref=rp

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