xullnnA way of using Fibonacci sequence to quantitatively measure how well a question fits to a chapter…This is a method I came up with during the optimization of a QA system, and I’ve implemented it in the project where it showed a positive…Jun 2Jun 2
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.Apr 25, 2021Apr 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。Mar 9, 2021Mar 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…Mar 9, 2021Mar 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…Feb 6, 2021Feb 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.Dec 27, 2020Dec 27, 2020
xullnnOn exploring Promise 1: thoughts about async and event loop model1 From setTimeout to PromiseSep 6, 2020Sep 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…Sep 6, 2020Sep 6, 2020
xullnnWhy 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…Sep 16, 20191Sep 16, 20191
