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
order stromectol over the counter stromectol 3mg tablets
https://stromectoltrust.com/# stromectol 3mg tablets
https://stromectoltrust.com/# order stromectol over the counter
100mg seroquel quetiapine tablet generic what are the doses of seroquel how long does it take for quetiapine to kick in
https://furosemide.sbs lasix
stromectol stromectol 12 mg tablets
stromectol 12 mg tablets stromectol 3 mg tablets price
https://stromectoltrust.com/# stromectol 12 mg tablets
cheap gabapentin generic – buy stromectol sale stromectol 3mg cost
https://stromectoltrust.com/# stromectol for humans for sale
stromectol 3 mg tablets price order stromectol over the counter
dissertation plan
defending your dissertation
marketing acknowledgement
package insert baricitinib eli lilly baricitinib baricitinib 4mg online baricitinib acute gvhd
best ed pills at gnc cheap erectile dysfunction pill
Loving the info on this website , you have done outstanding job on the blog posts.
uk dissertation help
writing your doctoral dissertation
dissertation help service
https://drugsonline.store/# pump for ed
prednisone 40mg price – purchase amoxil online buy prednisolone 40mg generic
doxycycline for sale doxycycline for sale
Beneficial Blog! I had been simply just debating that there are plenty of screwy results at this issue you now purely replaced my personal belief. Thank you an excellent write-up.
ed drugs impotence pills
can hydroxychloroquine be purchased over the counter https://hydroxychloroquine.beauty
подъемник ножничный
https://nozhnichnyye-podyemniki-dlya-sklada.ru/
https://doxycyclineonline.store/# purchase doxycycline
top erection pills ed meds online without doctor prescription
https://drugsonline.store/# buy medication online
Some genuinely choice content on this site, bookmarked .
eli lilly baricitinib emyra cost of baricitinib mechanism of action of baricitinib baricitinib anemia
ed pills for sale men’s ed pills
buy 5 mg proscar finasteride 5mg tablets