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
Hello i am kavin, its my first time to commenting anyplace, when i read
this post i thought i could also make comment due to this sensible paragraph.
online pharmacy india: India pharmacy international – indian pharmacy
Is Treehouse Beds With Slide The Best There Ever Was?
kids treehouse bed uk
Узнайте стоимость диплома высшего и среднего образования и процесс получения
kątownik zimnogięty 25x25x2 cena
Hey there, I think your blog might be having browser compatibility issues.
When I look at your blog site in Ie, it looks fine but when opening in Internet Explorer, it has some overlapping.
I just wanted to give you a quick heads up! Other then that, superb blog!
https://indianpharm24.pro/# india pharmacy mail order
canadian online pharmacy
The Most Convincing Evidence That You Need Saab 93 Key saab key programmer
Fantastic Blog Reflection
Astounding, what a thought-provoking post !
I genuinely relished consuming your viewpoints
on this issue.
As a reader who has been tracking your blog for a while , I
must express that this is one of your finest eloquently crafted and mesmerizing works
to date.
The manner you intertwined together angles and scholarly findings was sincerely impressive .
I found myself nodding as I read due to the fact that your points merely came
across to progress so seamlessly .
Look into my site … bonus bk8
купить левый аттестат купить левый аттестат .
How To Choose The Right Case Battles On The Internet Case Battle Cs
Your website is always a hit! It’s popular and loved.
Здравствуйте, уважаемые жители и гости города Пушкино, все, кто решил посетить официальный сайт администрации!
Сколько стоит диплом высшего и среднего образования и как это происходит?
thelspr.listbb.ru/viewtopic.php?f=13&t=734
cheap erectile dysfunction http://indianpharm24.pro/# indianpharmacy com
Hey! This is my first comment here so I just wanted to give a quick shout
out and tell you I really enjoy reading through your articles.
Can you recommend any other blogs/websites/forums that
cover the same topics? Thanks for your time!
Iran Charter ( ایران چارتر ) is Iran’s first online charter and flight ticket purchase system Charter,as the first
comprehensive online ticket service provider of charter airline
tickets,seeks to provide easy and convenient services to customers
for easy purchase of airline tickets,so we believe that the first principle of e-commerce
is the ease of operation, with a contract As a ticket
supplier,We have made it easy for you with charter companies and different airlines.
Как официально купить диплом вуза с упрощенным обучением в Москве
prescription drugs without doctor approval https://pharm24.pro/# ed meds online canada
See What L Shaped Small Sofa Tricks The Celebs Are Using l shaped small sofa
I am really impressed with your writing skills and also with the layout on your
blog. Is this a paid theme or did you customize it yourself?
Either way keep up the nice quality writing,
it is rare to see a great blog like this one nowadays.
купить травмат без лицензии Первомайск
Have you ever thought about adding a little bit more
than just your articles? I mean, what you say is valuable and everything.
Nevertheless imagine if you added some great visuals or
videos to give your posts more, “pop”! Your content is excellent but with images and videos,
this site could definitely be one of the very best in its niche.
Amazing blog!
Excellent web site you have here.. It’s hard to find
high-quality writing like yours nowadays. I truly appreciate individuals like you!
Take care!!
http://pharm24.pro/# canadian online drugs
pharmacy medications
возможно ли купить диплом колледжа orik-diploms.ru .
https://ke1taro.com/crypto/
10 Life Lessons That We Can Learn From Psychiatric Assessment Private Assessment In Psychiatry
best online pharmacy india: India pharmacy delivery – Online medicine home delivery
Heya i am for the first time here. I found this board and I
to find It really useful & it helped me out much. I’m hoping to
offer one thing back and help others like you aided me.