Check if a token is a valid variable name
npm install is-valid-property
Doesn't try to follow the full spec, ie might say false when something should be true,
but will never say true when something should be false
const isValidVariable = require('is-valid-variable')
console.log(isValidVariable('const')) // false
console.log(isValidVariable('constantin')) // true
console.log(isValidVariable('64')) // false
console.log(isValidVariable('x64')) // true
MIT