Please stop pretending your book is free, people can see right through it. Most people in this community consider personal information and user marketing as a form of cost. Otherwise one can access it on Github, but it's not very convenient. I couldn't find "6.2.1. Is WeakMap Strictly Worse than Map" anywhere on your Github, other than in the screenshot.<p>If you want the book, you will have to pay them one Tweet and several powers, most of which are not necessary:<p><pre><code> 1. Read Tweets from your timeline.
2. See who you follow, and follow new people.
3. Update your profile.
4. Post Tweets for you.
5. See your email address.
</code></pre>
You're asking for more information than you actually need, which is looked down upon. Why do you need to post tweets for me, update my profile, see who I follow and follow new people for me? This does not abide by the rule of least-privilege.