one/src/utils/weakKey.ts

One is a React framework for web, iOS, and Android apps.

const w = new WeakMap<any, string>()
export const weakKey = (item: any): string => {
  return (
    w.get(item) ??
    (() => {
      const k = `${Math.random()}`
      w.set(item, k)
      return k
    })()
  )
}