Checking for jQuery when jQuery was not loaded.js

console.log($) // function()
console.log(typeof $) // "function"

console.log($()) // null
console.log(typeof $()) // "object"

try {
  console.log($().jquery)
  console.log(typeof $().jquery)
} catch (e) {
  console.log(e)
} // TypeError: "$() is null"

// In jQuery, $() is an alias of jQuery():
try {
  console.log(jQuery)
  console.log(typeof jQuery)

  console.log(jQuery())
  console.log(typeof jQuery())

  console.log(jQuery().jquery)
  console.log(typeof jQuery().jquery)
} catch (e) {
  console.log(e)
} // ReferenceError: "jQuery is not defined"