How to convert a string to pascalcase in JavaScript

In this Article we will go through how to convert a string to pascalcase only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const toPascalCase = str => (str.match(/[a-zA-Z0-9]+/g) || []).map(w => `${w.charAt(0).toUpperCase()}${w.slice(1)}`).join('');

toPascalCase('hello world');    // 'HelloWorld'
toPascalCase('hello.world');    // 'HelloWorld'
toPascalCase('foo_bar-baz');    // FooBarBaz