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Digit distance of two numbers - JavaScript
We are required to write a JavaScript function that takes in two numbers a and b returns their digit distance.
Digit distance
The digit distance of two numbers is the absolute sum of the difference between their corresponding digits.
For example: If the numbers are −
345 678
Then the digit distance will be −
|3-6| + |4-7| + |5-8| = 3 + 3 + 3 = 9
Example
Following is the code −
const num1 = 345;
const num2 = 678;
const digitDistance = (a, b) => {
const aStr = String(a);
const bStr = String(b);
let diff = 0;
for(let i = 0; i < aStr && i < bStr.length; i++){
diff += Math.abs(+(aStr[i] || 0) - +(bStr[i] || 0));
};
return diff;
};
console.log(digitDistance(num1, num2));Output
Following is the output in the console −
9
Updated on: 16-Sep-2020
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