javascript random 4 digit number
JavaScript Random 4 Digit Number
If you need to generate a random 4-digit number using JavaScript, there are a few ways to achieve this.
Using Math.random()
The Math.random()
function in JavaScript generates a random decimal number between 0 and 1. To generate a random 4-digit number, we can multiply the result of this function by 10000 and then use the Math.floor()
function to round down to the nearest integer.
let randomNumber = Math.floor(Math.random() * 10000);
This code will generate a random 4-digit number between 0 and 9999.
Using Date.now()
Another way to generate a random 4-digit number is to use the Date.now()
function, which returns the current date and time in milliseconds since January 1, 1970. We can then use this value to calculate a random number.
let randomNumber = parseInt(Date.now().toString().slice(-4));
This code will generate a random 4-digit number based on the current timestamp.
Using a Custom Function
If you want more control over how the random number is generated, you can create your own function that takes in a minimum and maximum value and returns a random integer within that range.
function getRandomNumber(min, max) {
return Math.floor(Math.random() * (max - min + 1)) + min;
}
let randomNumber = getRandomNumber(1000, 9999);
This code will generate a random 4-digit number between 1000 and 9999.