Stop confusing

Arrays that I use often but get confused

Orders in SQL

SQL CASE, Subquery

DELETE, TRUNCATE, DROP

MySQL Installation, Starting service, Connect

Structured Query Language, Not only Structured Query Language, ACID

Memoization

Array

A closure is the combination of a function and the lexical environment within which that function was declared.InnerFunc was declared and called withi

CORS

slice, splice

Function Hoisting, Function declaration, Function expression

Classification of object

for, while, do...while, continue

The switch statement and a leap year

Node.js

SPA & Routing

REST(Representational State Transfer)

Ajax refers to a communication method in which servers and browsers can exchange data asynchronously using Javascript.When a web page is returned from