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Squaring every digit of a number using split() in JavaScript
We are required to write a JavaScript function that takes in a number as the first and the only argument. The function should then square every digit of the number, append them and yield the new number.
For example −
If the input number is −
const num = 12349;
Then the output should be −
const output = 1491681;
because '1' + '4' + '9' + '16' + '81' = 1491681
Example
The code for this will be −
const num = 12349;
const squareEvery = (num = 1) => {
let res = ''
const numStr = String(num);
const numArr = numStr.split('');
numArr.forEach(digit => {
const square = (+digit) * (+digit);
res += square;
});
return +res;
};
console.log(squareEvery(num));Output
And the output in the console will be −
1491681
Updated on: 26-Feb-2021
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