JS 依照元素出現數量排序
同樣是最近遇到的狀況，需要利用陣列內元素出現的數量進行排序，以下為範例程式：
var array = ["1", "2", "4", "5", "2", "4", "2", "3"];
var str = array.toString();
var filter = [];
var result = [];
document.write("原始陣列：" + array + "<br>");
var get = function (str, tar, arr, tmp) {
if (str.indexOf(tar) >= 0) {
tmp = str.slice(str.indexOf(tar) + 1);
arr.push(tar);
get(tmp, tar, arr, tmp);
}
return arr;
}
for (i in array) {
var elm = [];
var tmp;
var fstr = filter.join();
if (fstr.indexOf(array[i]) >= 0) {
continue;
} else {
var tmp_arr = get(str, array[i], elm, tmp);
result.push(tmp_arr.length + ':' + tmp_arr[0]);
filter.push(array[i]);
}
}
result.sort();
result.reverse();
//按照出現次數排序，不刪除重複元素
var finishArray = [];
for (index in result) {
var show = result[index].split(':');
for (i = 0; i < show[0]; i++) {
finishArray.push(show[1]);
}
}
document.write("按出現次數排序，不刪除重複元素：" + finishArray + "<br>");
//按照出現次數排序，刪除重複元素
var finishArray = [];
for (index in result) {
var show = result[index].split(':');
finishArray.push(show[1]);
}
document.write("按出現次數排序，刪除重複元素：" + finishArray + "<br>");
輸出結果：
原始陣列：1,2,4,5,2,4,2,3 按出現次數排序，不刪除重複元素：2,2,2,4,4,5,3,1 按出現次數排序，刪除重複元素：2,4,5,3,1
купить аттестат об окончании 11
You’ll Never Be Able To Figure Out This Fridge Freezers For Sale’s Tricks fridge freezers for sale
(https://vietnamki.ru/bitrix/redirect.php?goto=https://www.frydge.uk)
can you get remeron pill
Aw, this was an incredibly nice post. Taking the time
and actual effort to create a top notch article… but what can I say… I put things off a whole
lot and never seem to get anything done.
It’s in fact very complex in this full of activity life to listen news on Television, thus
I only use web for that purpose, and get the latest
news.
deneme bonusu veren yeni siteler denemebonusuverensiteler25 deneme bonusu veren yeni siteler
http://sweetbonanza25.com/# sweet bonanza kazanma saatleri
sweet bonanza yorumlar sweet bonanza slot sweet bonanza
Thanks on your marvelous posting! I really enjoyed reading it, you
could be a great author.I will make certain to
bookmark your blog and will come back sometime soon. I
want to encourage you to continue your great posts,
have a nice holiday weekend!
The 9 Things Your Parents Teach You About Fridge LG fridge Lg
An interesting discussion is definitely worth comment.
I believe that you need to publish more on this subject matter,
it may not be a taboo subject but typically people don’t
talk about such issues. To the next! Best wishes!!
Hello! This is my 1st comment here so I just wanted to give a quick shout out and tell you I truly enjoy reading through your posts. Can you recommend any other blogs/websites/forums that cover the same topics? Thank you so much!
I just used a moving and storage service, and it was a game changer! Look into Movers for your next move
I love the way you broke down the asphalt paving method! It’s so informative. For even extra methods, test out asphalt contractor
I really like what you guys are usually up too.
Such clever work and reporting! Keep up the superb works guys I’ve
incorporated you guys to my own blogroll.
Woah! I’m really loving the template/theme of this site.
It’s simple, yet effective. A lot of times it’s hard to get that “perfect balance” between superb usability and visual appearance.
I must say that you’ve done a very good
job with this. Additionally, the blog loads very quick for me on Internet explorer.
Excellent Blog!
Hello! Do you know if they make any plugins to safeguard against hackers?
I’m kinda paranoid about losing everything I’ve worked hard on. Any suggestions?
I love your blog.. very nice colors & theme.
Did you make this website yourself or did you hire someone to do it
for you? Plz reply as I’m looking to design my own blog and would like to
find out where u got this from. kudos
deneme bonusu veren yeni siteler: denemebonusuverensiteler25 – deneme bonusu veren yeni siteler
rubber stamp maker online rubber stamp maker online .
http://sweetbonanza25.com/# sweet bonanza slot
Аттестат школы купить официально с упрощенным обучением в Москве
Реально ли приобрести диплом стоматолога? Основные шаги
4 Strategies Planning Mothering Sunday Party 제주유흥 (Espn365.Ru)
Excellent post. I was checking constantly this blog and I am impressed!
I care
Extremely useful info specifically the last part
for such information much. I was looking for this particular info
for a very long time. Thank you and good luck.
12 Stats About Fridge Brands UK To Make You Take A Look At Other People Which best Fridge
This was very enlightening. For more, visit Long Distance Movers
You really make it appear so easy along with your presentation but I in finding this matter to be
really one thing which I think I’d by no means understand.
It kind of feels too complicated and very large for me.
I’m having a look forward on your next submit, I will
try to get the grasp of it!
Incredible points. Sound arguments. Keep up the
amazing effort.
Great work! This is the type of info that are supposed to be shared around the web.
Disgrace on the search engines for now not positioning this post upper!
Come on over and discuss with my site . Thank you =)