JS 陣列排序範例
馬老師離開待了約十幾年的教學界,目前在外商科技公司擔任Senior Consultant的工作,原因當然很多,未來有空再慢慢發文章分享,剛好最近有點時間,怕以後忘記,把最近專案中用到的一些程式筆記下來,如果大家有需要,也可以參考使用,這一篇是關於Javascript陣列排序的部分。
通常若有較多的內容需要儲存,變數就沒有陣列來的好用,所以陣列是拿來儲存大量的資料時所使用的,且儲存在裡面的資料,還可以選擇經過排序之後再呈現至畫面上,例如:
var name = ["stanley", "jack", "anita" , "mary"]; name.sort() //依照字母排序 console.log(name); // 輸出 ["anita", "jack", "mary", "stanley"] names.reverse() //反轉陣列內容 console.log(name); //輸出 ["stanley", "mary", "jack", "anita"]
但若我們同時有多個陣列,但希望以其中之一的內容排序時,也可以同步更新到另外一個陣列,該如何處理呢?可以參考以下的方式:
var name = ["stanley", "jack", "anita" , "mary"]; var gender = ["male" , "male" , "female" , "female"]; var score = [30, 10, 40 , 80]; var ID = ["S1" , "S2" , "S3" , "S4"]; console.log("name : " + name + "; score : " + score + "; gender : " + gender + "; ID : " + ID); /* 排序前 name : stanley,jack,anita,mary; score : 30,10,40,80; gender : male,male,female,female; ID : S1,S2,S3,S4; */ var list = []; for (var i = 0; i < name.length; i++){ list.push({ 'name': name[i], 'score': score[i], 'gender': gender[i], 'ID': ID[i] }); } list.sort(function(a, b) { return ((a.name < b.name) ? -1 : ((a.name == b.name) ? 0 : 1)); }); for (var i = 0; i < list.length; i++) { name[i] = list[i].name; score[i] = list[i].score; gender[i] = list[i].gender; ID[i] = list[i].ID; } console.log("name : " + name + "; score : " + score + "; gender : " + gender + "; ID : " + ID); /* 排序後 name : anita,jack,mary,stanley; score : 40,10,80,30; gender : female,male,female,male; ID : S3,S2,S4,S1; */
若是希望按照分數排序,則可以將sort function 修改為下:
//score 由小到大 list.sort(function(a, b) { return a.score - b.score }); //score 由大到小 list.sort(function(a, b) { return b.score - a.score });
補充:
上述的排序內容均以英文和數字為主,若是遇到中文可使用localeCompare進行,而排序的方式是漢語拼音順序,以下為範例:
var arr = ["二","五","四","一","三"]; //漢語拼音:一[yi], 二[er], 三[san], 四[si], 五[wu] console.log("排序前:" + arr); // 排序前:二,五,四,一,三 arr.sort(function(a,b){ return a.localeCompare(b, 'zh'); //排序後:二,三,四,五,一 }); console.log("排序後:" + arr); var arr = ["中文","英語","法國話", "京片子", "中國"]; //中文[zhong wen], 英語[ying yu], 法國話[fa guo hua], 京片子[jing pian zi], 中國[zhong guo] console.log("排序前:" + arr); //排序前:中文,英語,法國話,京片子,中國 arr.sort(function(a,b){ return a.localeCompare(b, 'zh'); }); console.log("排序後:" + arr); //排序後:法國話,京片子,英語,中國,中文 var arr = ["中文","英语","法国话", "京片子", "中国"]; console.log("排序前:" + arr); //排序前:中文,英语,法国话,京片子,中国 arr.sort(function(a,b){ return a.localeCompare(b, 'zh'); }); console.log("排序後:" + arr); //排序後:法国话,京片子,英语,中国,中文
sitio oficial de 1win https://www.1win6.com.mx .
1вин официальный сайт https://cah.forum24.ru/?1-13-0-00001560-000-0-0-1741172791/ .
1vin казино cah.forum24.ru/?1-13-0-00001560-000-0-0-1741172791 .
Are you looking for the best Dehardun call girls service? Finding a call girls service in Dehardun can be a daunting task. dehradun call girl With so many options available, it’s hard to know which one is reliable and trustworthy. In this post, we will explore the different options available for finding the best Dehardun call girls service, so that you can make the best decision for your needs. Our Dehardun call girls are available 24*7 for booking in 4,5-star hotel rooms. Don’t wait any more to call girls or text us on our WhatsApp number ….. get more details about Dehardun call girls service.
Casino bonuslarıyla slotlarda oynamak daha da eğlenceli ve kazançlı hale geliyor.
very good post, i certainly really like this excellent website, keep on it
1win. https://cah.forum24.ru/?1-13-0-00001560-000-0-0-1741172791 .
Aw, i thought this was quite a good post. In concept I would like to devote writing such as this moreover – spending time and actual effort to produce a great article… but exactly what do I say… I procrastinate alot by no means manage to get something done.
Everything You Need To Know About Buy Category C Driving License Comprar carta de condução Categoria B
1win казино http://www.cah.forum24.ru/?1-13-0-00001560-000-0-0-1741172791 .
1vin 1vin .
1wi 1wi .
вход 1win http://cah.forum24.ru/?1-13-0-00001560-000-0-0-1741172791 .
Nice post. I learn some thing harder on various blogs everyday. Most commonly it is stimulating to study content from other writers and exercise a specific thing from their site. I’d opt to apply certain using the content in my small weblog regardless of whether you do not mind. Natually I’ll provide link for your internet weblog. Thanks for sharing.
What NOT To Do Within The Smart Vacuum Cleaner Industry self vacuum Near me
canada medications online
скачать мостбет официальный сайт https://www.chesskomi.borda.ru/?1-10-0-00000277-000-0-0-1741171219 .
1win зайти cah.forum24.ru/?1-13-0-00001560-000-0-0-1741172791 .
баланс ван вин http://cah.forum24.ru/?1-13-0-00001560-000-0-0-1741172791/ .
They have expertise in handling international shipping regulations.
buying gabapentin
They have strong partnerships with pharmacies around the world.
wan win http://aqvakr.forum24.ru/?1-3-0-00001121-000-0-0 .
1 вин скачать aqvakr.forum24.ru/?1-3-0-00001121-000-0-0 .
Trust and reliability on a global scale.
can i order cipro without rx
Great place with even greater staff.
This Is A Buy A Real German Driving License Success Story
You’ll Never Believe FüHrerschein Ohne PrüFung Legal (Uaslaboratory.Synology.Me)
Their global presence ensures prompt medication deliveries.
https://lisinoprilpharm24.top/
Always my first choice for international pharmaceutical needs.
5 Killer Quora Answers To Sofas Sale Sofas sale
мос бет https://chesskomi.borda.ru/?1-10-0-00000277-000-0-0-1741171219/ .
мотбет http://www.chesskomi.borda.ru/?1-10-0-00000277-000-0-0-1741171219 .
Great information. Lucky me I came across your website by accident (stumbleupon). I have saved it for later.
1win online https://www.aqvakr.forum24.ru/?1-3-0-00001121-000-0-0 .