Coding⏱️ 2 min read📅 2026-05-31

How to Fix: JSLint says "missing radix parameter"

JSLint error due to missing radix parameter in parseInt function.

Quick Answer: The issue is that the parseInt function requires a radix parameter, which specifies the base of the number. In this case, it's assumed to be 10 (decimal), but no value is provided.

📋 Table of Contents

  1. 🛑 Root Causes of the Error
  2. ✅ Best Solutions to Fix It
  3. 🎯 Final Words

The error 'missing radix parameter' in JSLint occurs when the parseInt() function is used without specifying a radix. The parseInt() function is used to convert a string into an integer, and it requires a radix parameter (base) that specifies the base of the number.

🛑 Root Causes of the Error

  • The parseInt() function is used without specifying a radix in the given code.

✅ Best Solutions to Fix It

Method 1: Specifying the Radix

  1. Step 1: Change the parseInt() function to specify the radix, for example: parseInt(id.substring(id.length - 1), 10) - 1;

Method 2: Using a Different Function

  1. Step 1: Use the Number() function instead of parseInt(), which does not require a radix parameter, for example: Number(id.substring(id.length - 1)) - 1;

🎯 Final Words

By specifying the radix or using a different function, you can fix the 'missing radix parameter' error in JSLint and ensure your code is valid.

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