How to Convert String Values from a Prompt Box to Integers in JavaScript?

How to Acquire Numeric Values from a Prompt Box?

Converting strings obtained from a JavaScript prompt box into integers is crucial for performing numerical calculations. To achieve this, JavaScript provides the parseInt() function.

Syntax:

parseInt(string, radix)

• string: The string to be parsed as an integer.
• radix: Optional parameter specifying the base of the numeral system (between 2 and 36).

Example:

<code class="javascript">var x = prompt("Enter a Value", "0");
var y = prompt("Enter a Value", "0");

var num1 = parseInt(x);
var num2 = parseInt(y);

// Perform mathematical calculations on num1 and num2 as integers</code>

Additional Notes:

• If the radix is omitted, the radix used for parsing is based on the leading characters of the string.
• Leading or trailing white spaces in the string are automatically ignored.
• If the string cannot be converted to an integer, parseInt() returns NaN.

By using parseInt(), you can effortlessly convert string values from prompt boxes into integers, enabling you to perform numerical computations seamlessly.

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