xullnnSimple examples about Closure in JavaScript and RubyIn this post I want to use simple code examples in both JavaScript and Ruby to show the existence of closure.5 min read·Apr 25, 2021----
xullnnNote of The Brain That Changes Itself一本关于大脑可塑性的科普书,此书从知识层面和生活层面都给予了我很大帮助。85 min read·Mar 9, 2021----
xullnnNote of Learning how to learnLearning how to learn 是 Coursera 上的的一门课程,主讲是:Dr. Barbara Oakley 和 Dr. Terrence…28 min read·Mar 9, 2021----
xullnnERROR: column “mystery” must appear in the GROUP BY clause or be used in an aggregate functionI want to share my thoughts about how to think straight about why we need to apply aggregate function when we used GROUP BY clause in a…5 min read·Feb 6, 2021----
xullnnThe beautiful idea of the internetIn this post, I’ll share my thoughts about the big picture of the internet without mentioning too many tech terms.6 min read·Dec 27, 2020----
xullnnOn exploring Promise 1: thoughts about async and event loop model1 From setTimeout to Promise12 min read·Sep 6, 2020----
xullnnOn Exploring Promise 2: possible overlooked points about promiseThis is part 2 of my exploring on promise. In part 1, I shared my thoughts about “async” and “event loop” as the basis to better…12 min read·Sep 6, 2020----
xullnninLaunch SchoolWhy fundamentals are important?Modern society addresses the ability of rapid learning a lot. To meet the word ‘rapid’, many learning projects emerge on market. They…11 min read·Sep 16, 2019--1--1
xullnninLaunch SchoolWould you rather get what you want to slowly or get what you don’t want much faster?I borrowed the title from the book The Robot’s Rebellion Finding Meaning in the Age of Darwin, because I think this is also a good…6 min read·Apr 17, 2019--2--2