Question

How to check if a number is pandigital in TypeScript

Answer 1

// pandigital = a number that makes use of all the digits to exactly once
// for example 15234 is 1 through 5 pandigital

function IsPandigital(num: number) {
    const array: string[] = new String(num).toString().split('');
    
    array.sort(function(a: any, b: any) {return a - b;});
        
    let number1 = parseInt(array[0]);
    for (let i = 1; i < array.length; i++) {
        let number2 = parseInt(array[i]);
        if (number2 != number1 + 1) {
            return false;
        }
        number1 = number2;
    }
    
    return true;
}

const num: number = 1572634;
        
if (IsPandigital(num)) {
    console.log("Yes");
} else {
    console.log("No");
}





/*
run:

"Yes" 

*/

 

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