How to convert a string to a boolean in JavaScript

Introduction

In JavaScript, we may wish to convert a string to a boolean. In this post, we'll look at how to do it.

How to convert a string to a boolean in JavaScript

To convert a string to a boolean in JavaScript you need to:

• check if your string is not null or undefined,
• convert the string to lowercase,
• compare converted string with true value.

const isTrue = (str) => str && str.toLowerCase() === 'true';

console.log(isTrue('test')); // false
console.log(isTrue('TRUE')); // true
console.log(isTrue('false')); // false
console.log(isTrue('0')); // false
console.log(isTrue('1')); // false
console.log(isTrue('True')); // true

Conclusion

In this article, we learned how to convert a string to a boolean in JavaScript.