I installed mathjs globally using npm:

npm install -g mathjs

When I write code like the below in VS Code, intellisense does not work for mathjs so I cannot see the methods or attributes in the dropdown list when I press .:

/*
why does the intellisense not work for mathjs ?
*/

const mathjs = require('mathjs')  // intellisense does not work
const fs = require('fs')   // intellisense does work


let m = mathjs.mean([1,2,3,4,5])  // the actual module method works fine !
let n = Math.max(1,2,3,4,5)   // the intelisense works fine here too.


console.log(m)
console.log(n)

Points to note:

• the methods do work for mathjs, just not intellisense
• intellisense works for other imported modules (e.g. require('fs'))
• intellisense in the Math module also works

It seems to be specifically isolated to this one module. How can I get the intellisense working for mathjs?