title: Are "popper" and "popper.js" two different packages in npm?
body: <p>I am following a tutorial that uses this command to install popper:
  <code>npm install popper --save</code>. But when I tried it got this error message: <a href="https://stackoverflow.com/questions/56201929/fatal-error-cygheap-base-mismatch-detected-0x13a1410-0x13d1410?noredirect=1#comment99039307_56201929">fatal error - cygheap base mismatch detected - 0x13A1410/0x13D1410</a> </p>
  
  <p>So I searched to find the github page of this library and found this page: <a href="https://github.com/FezVrasta/popper.js" rel="nofollow noreferrer">https://github.com/FezVrasta/popper.js</a> but I saw it suggests this command to install it: <code>npm install popper.js --save</code> and it's different from my tutorial. Now I like to know are these to libraries different? What is the github page of the <code>poppe</code> not <code>popper.js</code> if they are different?</p>
  
  <p>I also must mention that I don't say python popper library. I want the javascript version that used by <code>bootstrap4</code>. </p>