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
ويمثل هذا الموقع أحد المواقع الشهيرة التي تخص مجال صناعة الفيديوهات المميزة، وينافس في هذا المجال العديد من
المواقع التي سنقوم بسردها لكم في المقال.
I feel that is one of the such a lot important info for me.
And i am glad reading your article. However want to remark on some common issues, The site taste is wonderful, the articles is
in reality excellent : D. Excellent activity, cheers
вавада онлайн казино: казино вавада – vavada-kazi.ru
Hi there! I just wanted to ask if you ever have any trouble
with hackers? My last blog (wordpress) was hacked and I ended up losing several weeks of hard work
due to no data backup. Do you have any solutions to stop
hackers?
Here is my web-site; best realtor in st augustine
I am regular reader, how are you everybody?
This article posted at this website is genuinely fastidious.
Unquestionably imagine that that you said.
Your favourite reason appeared to be at
the web the easiest factor to have in mind of. I say to you, I definitely get annoyed
whilst other people consider concerns that they just don’t recognise about.
You controlled to hit the nail upon the highest as smartly as
defined out the whole thing with no need side-effects , other folks can take a signal.
Will likely be back to get more. Thank you
Hey There. I found your blog the use of msn. This is a very neatly written article.
I’ll make sure to bookmark it and come back to learn more of your helpful info.
Thank you for the post. I’ll certainly comeback.
Предлагаем услуги профессиональных инженеров офицальной мастерской.
Еслли вы искали сервисный центр philips в москве, можете посмотреть на сайте: сервисный центр philips в москве
Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!
Simply wish to say your article is as amazing. The clearness
for your put up is simply great and i can think you are a professional on this subject.
Fine together with your permission allow me to grasp your feed to stay updated with drawing close post.
Thanks one million and please keep up the enjoyable work.
пин ап казино официальный сайт: пин ап казино официальный сайт – pinup kazi
Hey I am so glad I found your webpage, I really found you by error, while I was browsing on Askjeeve for
something else, Anyways I am here now and would just like to say
cheers for a marvelous post and a all round thrilling blog (I
also love the theme/design), I don’t have time to go through it all at the minute but I have book-marked
it and also added your RSS feeds, so when I have time I will be back to read
much more, Please do keep up the awesome job.
Hi! I could have sworn I’ve been to this site before but after browsing through some of the post I realized it’s new to me.
Nonetheless, I’m definitely glad I found it and
I’ll be book-marking and checking back frequently!
пин ап казино: пин ап зеркало – pinup-kazi.ru
Быстрая схема покупки диплома старого образца: что важно знать?
Предлагаем услуги профессиональных инженеров офицальной мастерской.
Еслли вы искали сервисный центр philips в москве, можете посмотреть на сайте: официальный сервисный центр philips
Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!
вавада онлайн казино: vavada – vavada
Предлагаем услуги профессиональных инженеров офицальной мастерской.
Еслли вы искали официальный сервисный центр philips, можете посмотреть на сайте: сервисный центр philips
Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!
Предлагаем услуги профессиональных инженеров офицальной мастерской.
Еслли вы искали официальный сервисный центр philips, можете посмотреть на сайте: сервисный центр philips в москве
Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!
I am regular reader, how are you everybody?
This paragraph posted at this site is really good.
Официальная покупка диплома вуза с сокращенной программой в Москве
Как купить аттестат 11 класса с официальным упрощенным обучением в Москве
Information clearly taken.!
Feel free to visit my page https://surgalt.redcross.mn/blog/index.php?entryid=185995
пин ап казино: пин ап казино – пин ап кз
My family every time say that I am wasting my time here at web,
however I know I am getting know-how daily by reading thes pleasant articles
or reviews.
Whiskey Bar 하이오피
pinup: pinup-kazi.kz – pinup kazi
Yesterday, while I was at work, my sister stole my apple ipad and tested to see if it can survive a twenty five foot drop, just so she can be
a youtube sensation. My apple ipad is now destroyed and she has 83
views. I know this is entirely off topic but I had to share it with someone!
Hey there exceptional website! Does running a blog similar to this take a large amount of work?
I have absolutely no understanding of programming but I had been hoping to start my own blog soon. Anyways,
should you have any suggestions or tips for new blog owners please share.
I understand this is off subject however I just wanted to ask.
Thank you!
My homepage – เครดิตฟรี 39
If some one needs to be updated with hottest technologies after that he must
be visit this web site and be up to date everyday.
my blog post … real estate agent in tucson az
https://pinup-kazi.kz/# пин ап казино