How Do I Convert Strings to Integers in JavaScript?

Converting Strings to Integers in JavaScript

In JavaScript, there are multiple approaches to converting strings to integers. Here's a comprehensive guide to these methods:

Native Number Function

The simplest approach is to use the native Number function:

var x = Number("1000");

parseInt

If the Number function doesn't suffice, consider the parseInt method:

var x = parseInt("1000", 10); // Specify radix 10 for decimal numbers

Unary Plus

For strings representing integers:

var x = +"1000";

Math.floor

To convert strings to integers and round down floating-point values:

var x = Math.floor("1000.01"); // Automatically converts strings to numbers

Math.round

Math.round also performs string-to-number conversion and rounding:

var x = Math.round("1000.01");

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