function hookDeletingChain()

in public/dexie.js [588:603]

• 16 lines of code
• 6 McCabe index (conditional complexity)

  function hookDeletingChain(f1, f2) {
    if (f1 === nop) return f2;
    return function () {
      f1.apply(this, arguments);
      var onsuccess = this.onsuccess, // In case event listener has set this.onsuccess
        onerror = this.onerror; // In case event listener has set this.onerror
      this.onsuccess = this.onerror = null;
      f2.apply(this, arguments);
      if (onsuccess)
        this.onsuccess = this.onsuccess
          ? callBoth(onsuccess, this.onsuccess)
          : onsuccess;
      if (onerror)
        this.onerror = this.onerror ? callBoth(onerror, this.onerror) : onerror;
    };
  }