JavaScript: Add two positive integers without carry

Last update on May 30 2022 10:01:26 (UTC/GMT +8 hours)

JavaScript Basic: Exercise-82 with Solution

Write a JavaScript to add two positive integers without carry.

Pictorial Presentation:

JavaScript: Add two positive integers without carry.

Sample Solution:

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JavaScript to add two positive integers without carry</title>
</head>
<body>

</body>
</html>

JavaScript Code:

function add_two_int_without_carrying(n1, n2) {
    var result = 0,
        x = 1;
    while (n1 > 0 && n2 > 0) {
        result += x * ((n1 + n2) % 10);
        n1 = Math.floor(n1 / 10);
        n2 = Math.floor(n2 / 10);
        x*= 10;
    }
    return result;
}
console.log(add_two_int_without_carrying(222, 911))
console.log(add_two_int_without_carrying(200, 900))

Sample Output:

133
100

Flowchart:

ES6 Version:

function add_two_int_without_carrying(n1, n2) {
    let result = 0;
    let x = 1;
    while (n1 > 0 && n2 > 0) {
        result += x * ((n1 + n2) % 10);
        n1 = Math.floor(n1 / 10);
        n2 = Math.floor(n2 / 10);
        x*= 10;
    }
    return result;
}
console.log(add_two_int_without_carrying(222, 911))
console.log(add_two_int_without_carrying(200, 900))

Live Demo:

See the Pen javascript-basic-exercise-82 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