How to convert a value to a safe integer using JavaScript ? Last Updated : 14 Jun, 2023 Comments Improve Suggest changes Like Article Like Report In this article, we will learn How to convert a value to a safe integer using JavaScript. We have given a number, and we have to convert it into a safe integer using JavaScript. Safe Integers are integers between -(253 - 1) and (253 - 1). Approach: First, we take input using the prompt in JavaScript. And store that input in a variable called input. Now we make two variables, one called mini that contains the minimum of input and the MAX_SAFE_INTEGER[253-1], and the other is maxi that contains the maximum of mini and MIN_SAFE_INTEGER[-(253-1)]. Now we make another variable that contains our answer called safeInt which contains the round value of the maxi variable. And this is the safe integer of the given value. Below is all syntax of the above-used JavaScript functions: Syntax: const input = prompt('Please enter unsafe integer:'); let mini = Math.min(input,Number.MAX_SAFE_INTEGER); let maxi = Math.max(mini,Number.MIN_SAFE_INTEGER); const safeInt = Math.round(maxi); Example: HTML <!DOCTYPE html> <html> <head> <style> .gfg1{ font-size: 30px; color: green; } #gfg2{ font-size: 30px; color: green; } div{ margin-left: 30%; } button{ font-size: 20px; } </style> </head> <body> <div> <p class="gfg1">GeeksforGeeks</p> <button onclick="fun()">click me</button> <p id="gfg2"></p> </div> <script> function fun(){ const input = prompt('Please enter unsafe integer:'); let mini = Math.min(input,Number.MAX_SAFE_INTEGER); let maxi = Math.max(mini,Number.MIN_SAFE_INTEGER); const safeInt = Math.round(maxi); document.getElementById("gfg2").innerHTML = input + " => " + safeInt; } </script> </body> </html> Output: Comment More infoAdvertise with us Next Article How to add float numbers using JavaScript ? K kapilnama1998 Follow Improve Article Tags : JavaScript Web Technologies JavaScript-Numbers JavaScript-Questions Similar Reads How numbers are stored in JavaScript ? In this article, we will try to understand how numbers are stored in JavaScript. Like any other programming language, all the data is stored inside the computer in the form of binary numbers 0 and 1. Since computers can only understand and process data in the form of 0's and 1's. In JavaScript, ther 6 min read How to create a Number object using JavaScript ? In this article, we will discuss how to create a Number object using JavaScript. A number object is used to represent integers, decimal or float point numbers, and many more. The primitive wrapper object Number is used to represent and handle numbers. examples: 20, 0.25. We generally don't need to w 2 min read How to convert a value to a safe integer using JavaScript ? In this article, we will learn How to convert a value to a safe integer using JavaScript. 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