JavaScript Program to Print an Integer Entered by user Last Updated : 22 Feb, 2024 Comments Improve Suggest changes Like Article Like Report Creating a JavaScript program to accept an integer from the user and then print it is a fundamental exercise that helps in understanding user input and output operations. In this article, we'll explore different approaches to achieve this task in a JavaScript environment. Approach 1: Using Prompt and Alert in BrowserOne of the simplest ways to get user input and display output in a web browser is by using the prompt() function to capture input and the alert() function to display the output. HTML <!DOCTYPE html> <html> <body> <script> let userInteger = parseInt(prompt("Enter an integer:")); alert(`You entered: ${userInteger}`); </script> </body> </html> Output In this example, prompt() displays a dialog box to the user to enter an integer, and parseInt() is used to convert the input string to an integer. The alert() function then displays the entered integer. Approach 2: Using HTML Form and JavaScriptYou can also create an HTML form to accept user input and use JavaScript to display the entered integer. HTML <!DOCTYPE html> <html> <body> Enter an integer: <input type="text" id="integerInput"> <button onclick="printInteger()">Submit</button> <script> function printInteger() { let userInteger = parseInt( document.getElementById("integerInput").value); alert(`You entered: ${userInteger}`); } </script> </body> </html> Output In this approach, the user's input is captured from an HTML input element, and the printInteger() function is called when the user clicks the "Submit" button. The function retrieves the value from the input field, converts it to an integer, and displays it using an alert box. Comment More infoAdvertise with us Next Article JavaScript Program to Print an Integer Entered by user V vkash8574 Follow Improve Article Tags : JavaScript Web Technologies JavaScript-Questions Similar Reads How to read a Matrix from user in Java? Given task is to read a matrix from the user. The size and number of elements of matrices are to be read from the keyboard. Java // Java program to read a matrix from user import java.util.Scanner; public class MatrixFromUser { // Function to read matrix public static void readMatrixByUser() { int m 2 min read 5 Ways to Convert Double to Integer in Java Double is a primitive data type in Java that is used to represent double-precision floating point numbers. It uses the IEEE 754 standard for representing floating point numbers and has a default value of 0.0d. The double data type is the default data type for decimal numbers in Java and has a defaul 5 min read How to Use Swing Applet in Java? In this article, we will be using the swing Applet or JApplet in Java. Here, we will make a simple multiplication application that will multiply the two input numbers. Approach to Using Swing Applet in JavaWe need to import the packages for Swing and AWT Components.Once the packages are imported, we 4 min read Taking Input from User in R Programming Developers often have a need to interact with users, either to get data or to provide some sort of result. Most programs today use a dialog box as a way of asking the user to provide some type of input. Like other programming languages in R it's also possible to take input from the user. For doing s 7 min read How to print or output a String? In this article, we are going to learn how to print or output a string using different languages. Strings are considered a data type in general and are typically represented as arrays of bytes (or words) that store a sequence of characters. Strings are defined as an array of characters. Topics: Lang 3 min read Like