1 line of code: How to capitalise a string

  const capitalise = ${str.charAt(0).toUpperCase()}${str.slice(1)}`;

Returns a new capitalised string.

Optimised version (Benchmark)

const capitalise = str => `${str[0].toUpperCase()}${str.slice(1)}`;

The repository & npm package

You can find the all the utility functions from this series at github.com/martinkr/onelinecode
The library is also published to npm as @onelinecode for your convenience.

The code and the npm package will be updated every time I publish a new article.

Follow me on Twitter: @martinkr and consider to buy me a coffee

Photo by zoo_monkey on Unsplash