js-keywords

A lightweight utility package that provides an up-to-date list of JavaScript reserved keywords. Useful for code analysis, linters, and educational tools.

Installation

npm install js-keywords

Usage

const { isKeyword, jsKeywords } = require("js-keywords");

// Check if a word is a JavaScript keyword
console.log(isKeyword("class")); // true
console.log(isKeyword("hello")); // false

// print all JavaScript keywords
jsKeywords(); 

API

isKeyword(word)

Checks if the given string is a valid JavaScript keyword.

• Parameters:

  • word – The word to test (string).

• Returns:

  • true if it is a keyword, otherwise false.

jsKeywords()

Returns an array of all JavaScript reserved keywords and literals.

• Returns:

  • An array of strings containing all keywords.

✅ Example Output

console.log(isKeyword("function")); // true
console.log(isKeyword("openai"));   // false

jsKeywords();
// ["break", "case", "catch", "class", "const", "continue", ...]