How to useMath Log10 in Javascript
In this approach we are using the Math Log10, calculate the logarithm base 10 of the number, and add 1, to determine the total digit count. Accurately calculates digits present.
Syntax:
function counting(num) {
return Math.floor(Math.log10(num) + 1);
}
Example: Here, the counting function uses Math Log10 to calculate and return the digit count of a given number.
function counting(num) {
return Math.floor(Math.log10(num) + 1);
}
const num1 = 12345;
console.log("Total Number of digits in 12345 is :", counting(num1));
Output
Total Number of digits in 12345 is : 5
JavaScript Program to Count Digits of a Given Number
Count Digits of a Given Number refers to determining the total number of individual digits present in a given numerical value. This involves analyzing each digit within the number and calculating how many digits are present in total.
Examples:
Input : 12345 Output : Total number of digits in 12345 is : 5 Input : 64674345 Output : Total number of digits in 12345 is : 8
There are several methods that can be used to Count Digits of a Given Number:
Table of Content
- Using a Reduce Method
- Using for Loop
- Using String Conversion
- Using Math Log10
- Using Recursion
- Using a While Loop and Integer Division
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