Programming VIP

Two Java replicas of SUSCTF2022 preface I didn't watch the game. First, I can't remember Java after touching the whole winter vacation... Second, because the hearts and minds of the team are directly seconds.. However, these two fastjson seem to have some strange problems. If you reproduce them, just learn something from them. baby gadget v ...

1 simulate document tree structure 2 how to get elements 1) Get element by id var div1 = document.getElementById("box1"); 2) Get element by class name var p1Arr = document.getElementsByClassName("p1"); Pseudo array definition: 1. It has the length attribute, and other attributes (indexes) are non negative integers (the index in the objec ...

The original text is reproduced from "Liu Yue's technology blog" https://v3u.cn/a_id_207 Once upon a time, SVG(Scalable Vector Graphics) vector animation was known as a technology cursed by browsers because of poor hardware support (IE) and endless compatibility tuning (Safari). However, today in 2022, everything is different. It is ...

1. What is JavaSpript 1.1 Overview javaSpript is one of the most popular scripting languages in the world A qualified backend must be javaScript proficient 1.2 History Introduction: https://blog.csdn.net/kese7952/article/details/79357868 ECMAScript: A standard that can be understood as javaScript The latest version has reached es6~but mo ...

js garbage collection The Javascript of the browser has an automatic garbage collection mechanism (GC). The garbage collector will periodically (periodically) find out those variables that are no longer in use, and then release their memory. However, this process is not real-time, because it is expensive and stops responding to other operation ...