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
medication zestoretic Lisinopril 1st cheapest Lisinopril
Hello to every single one, it’s truly a pleasant for me to go to see this web site, it includes helpful Information.
Redevelopments of commercial Complex, Mall, Officies or Shop or Condo
лечение наркозависимости в стационаре gov.ukrbb.net/viewtopic.php?f=3&t=6377 .
вывод из запоя в воронеже http://www.kryto.ukrbb.net/viewtopic.php?f=3&t=1167/ .
http://iverfast.com/# ivermectin india
Wow, that’s what I was searching for, what a information!
existing here at this weblog, thanks admin of this web page.
Oil Palm plantation still in demand
Как не попасть впросак при покупке диплома колледжа или ПТУ в России
my web-site; high stakes Poker
https://plavixclo.com/# buy clopidogrel bisulfate
deep web drug markets free dark web free dark web
buy prednisone canadian pharmacy: raypharm – 10 mg prednisone tablets
My spouse and I stumbled over here different website and thought I might check things out.
I like what I see so i am just following you. Look forward to looking over
your web page for a second time.
Check out my page; รับจัดงานแต่งงาน
вывод из запоя воронеж вывод из запоя воронеж .
Oil Palm plantation still in demand
This is the right web site for anybody who really wants
to understand this topic. You understand
a whole lot its almost tough to argue with you (not that
I actually will need to…HaHa). You definitely put a new
spin on a topic that has been written about for ages.
Great stuff, just wonderful!
clomid medication: clomid rex pharm – how to get cheap clomid without insurance
7 Things About Realistic Sex Dolls You’ll Kick Yourself For
Not Knowing silicone realistic sex dolls (Bobofng.Com)
id=”firstHeading” class=”firstHeading mw-first-heading”>Search гesults
Help
English
Tools
Tools
mοve to sidebar hide
Actions
Ԍeneral
Here іs myy blog post … ร้านดอกไม้บรรยากาศอบอุ่น
https://iverfast.com/# buy ivermectin for humans uk
plavix medication PlavixClo Best Price plavix best price
Покупка диплома о среднем полном образовании: как избежать мошенничества?
Our ranking is based on security, game selection, bonuses,
and user experience.
Полезные советы по безопасной покупке диплома о высшем образовании
Hi there, I believe your website could possibly
be having web browser compatibility problems. When I take a look at your web site in Safari,
it looks fine however, if opening in Internet Explorer, it’s got
some overlapping issues. I merely wanted to provide you with a quick heads up!
Apart from that, excellent site!
hey there and thank you for your information – I’ve definitely picked up something new
from right here. I did however expertise
a few technical points using this web site, as I experienced to reload the site lots of times
previous to I could get it to load correctly. I had been wondering if your hosting is OK?
Not that I’m complaining, but sluggish loading instances times will very frequently affect
your placement in google and could damage your high-quality score if advertising
and marketing with Adwords. Well I’m adding this RSS to my
email and could look out for a lot more of your respective
fascinating content. Make sure you update this again very soon.
Converting Land to plantation
tor market links deep web drug links dark web drug marketplace
Good day! This is my first visit to your blog!
We are a collection of volunteers and starting a new initiative in a community
in the same niche. Your blog provided us
beneficial information to work on. You have done a marvellous job!