Check if a value is NaN. ```javascript const lolite = require("lolite.isnan") const assert = require("node:assert")
npm install lolite.isnanjavascript
const lolite = require("lolite.isnan")
const assert = require("node:assert")
assert.ok(lolite.isNaN(NaN))
assert.ok(!lolite.isNaN("anything else"))
``