core/packages/sfc-playground/src/utils.ts

export function debounce(fn: Function, n = 100) {
  let handle: any
  return (...args: any[]) => {
    if (handle) clearTimeout(handle)
    handle = setTimeout(() => {
      fn(...args)
    }, n)
  }
}

// prefer old unicode hacks for backward compatibility
// https://base64.guru/developers/javascript/examples/unicode-strings
export function utoa(data: string): string {
  return btoa(unescape(encodeURIComponent(data)))
}

export function atou(base64: string): string {
  return decodeURIComponent(escape(atob(base64)))
}