Question

How to generate 20 digits random number in TypeScript

Answer 1

function generateRandomNumber(digits: number) {
    let randomNumber: string = '';
    
    while (randomNumber.length < digits) {
        randomNumber += Math.floor(Math.random() * 10);
    }
    
    return randomNumber;
}

const random20DigitNumber = generateRandomNumber(20);

console.log(random20DigitNumber);
console.log(parseFloat(random20DigitNumber));
console.log(parseInt(random20DigitNumber));
console.log(BigInt(random20DigitNumber));



/*
run:

"72117197665809914019" 
72117197665809916000 
72117197665809916000 
72117197665809914019 

*/

 

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