Question

How to check if a number and its double contain exactly the same digits in TypeScript

Answer 1

function same_digits_double_number(num: number) {
    const doubleNum: number = num * 2;
  
    const strNum: string[] = String(num).split("").sort();
    const strDoubleNum: string[] = String(doubleNum).split("").sort();
  
    return strNum.join("") === strDoubleNum.join("");
}

console.log(same_digits_double_number(125874)); 
console.log(same_digits_double_number(8491));




/*
run:

true
false

*/

 

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