Features include:

• First Letter Capital
• Each Letter Capital
• Slice Name
  • First Name
  • Second Name
  • Last Name
• Slice Name Capital
  • First Name capital
  • Second Name capital
  • Last Name capital

The easiest way to use it to install it.

npm i letter-cpital

Then use it in your app :-

const { firstCapital, eachCapital, fName, fNCapital } = require('letter-cpital');

    firstCapital("md adil alam"); // -> Md adil alam
    eachCapital("md adil alam"); // -> Md Adil Alam
    fName("md adil alam"); // -> md
    fNCapital("md adil alam"); //-> Md