This article describes the simulation method of JS table. Share it for your reference. The specific methods are as follows:
<!doctype html><html> <head> <meta charset="utf-8"> <title>List</title> <script> function List(){ this.listSize= 0; this.pos=0; this.dataStore=[];//Initialize an empty array to save the list element this.clear =clear; this.find = find; this.toString= toString; this.insert = insert; this.append= append; this.remove =remove; this.front = front; this.end = end; this.prev =prev; this.next = next; this.length= length; this.currPos= currPos; this.moveTo= moveTo; this.getElement =getElement; this.length = length; this.contains = contains; function append(element){ this.dataStore[this.listSize++] = element; }; function find(element){ for(var i =0; i<this.dataStore.length; i++){ if(this.dataStore[i]===element){ return i ; } } return -1; } function remove(element){ var foundAt =this.find(element); if(foundAt!=-1){ this.dataStore.splice(foundAt,1); this.listSize--; return element; //return true It was originally like this, I changed it to ELEMENT }else{ return false; } } function length(){ return this.listSize; } function toString(){ return this.dataStore; } function insert(element,after){ var insertPos = this.find(after); if(insertPos!=-1){ this.dataStore.splice(insertPos+1,0,element); this.listSize++; return true; }else{ return false; } } function clear (){ delete this.dataStore; this.listSize=0; this.pos=0; this.dataStore=[]; } function contains(element){ for(var i =0; i<this.dataStore.length; i++){ if(this.dataStore[i]===element){ return true ; } } return false; } function front(){ this.pos = 0; } function end(){ this.pos = this.listSize-1; } function prev(){ // if(this.pos> 0){ --this.pos; // } } function next(){ // if(this.pos< this.listSize-1){ ++this.pos; // } } function currPos(){ return this.pos; } function moveTo(pos){ this.pos= pos; } function getElement(){ return this.dataStore[this.pos]; } } var list = new List(); list.append({name:'Xia Guangcheng',sex:'male'}); list.append({name:'Jiang Rongsheng',sex:'male'}); list.append({name:'Du Qiang',sex:'male'}); list.append({name:'Qiaohua',sex:'female'}); list.append({name:'Fang Yang',sex:'male'}); list.append({name:'Fang Yang',sex:'male'}); for(list.front(); list.currPos() < list.length() ; list.next()){ var item = list.getElement(); if(item.sex =='female'){ list.remove(item); } } for(list.front(); list.currPos() < list.length() ; list.next()){ var item = list.getElement(); console.log(item.name); } </script> </head> <body > </body></html>I hope this article will be helpful to everyone's JavaScript programming.