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
You’ll Be Unable To Guess Sash Window Refurbishment’s Tricks sash window refurbishment
제주가 삼다도란 말도 다 옛 말입니다. 남자도 많아요!! 제주도호빠와서 확인 해보실래요?
I’m really impressed with your writing skills as well as 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 these days.
https://slotsiteleri25.com/# en cok kazand?ran slot oyunlar?
Berkat rentang lebar https://hadiyasfoundation.org/ pemasok mesin skala ini, your
choice menjadi everything dan more banyak dan tidak terbatas.
Pretty! This has been an extremely wonderful post. Thank
you for providing this info.
A dependable San Diego car shipping can significantly reduce the stress of relocating your vehicle
Hey there just wanted to give you a quick heads up. The text in your
content seem to be running off the screen in Safari. I’m not sure if this is
a format issue or something to do with internet browser compatibility but I thought I’d post to let you know.
The design and style look great though! Hope you get the issue resolved
soon. Cheers
en cok kazand?ran slot oyunlar?: guvenilir slot siteleri – slot oyunlar? puf noktalar?
Hello i am kavin, its my first time to commenting anyplace, when i read
this paragraph i thought i could also make comment due to this good article.
Thank you for some other informative website.
Where else may just I get that kind of information written in such an ideal manner?
I’ve a venture that I’m simply now running on, and I’ve
been on the glance out for such information.
All About Casino Roulette 에볼루션 바카라 결과값
Hi there, yup this piece of writing is really fastidious and I have learned lot of
things from it regarding blogging. thanks.
This blog made me realize how important it is to have a reliable roofer like Olympia Roofing Company in your contacts! Commercial roofing Olympia
deneme bonusu veren siteler: yeni deneme bonusu veren siteler – yat?r?ms?z deneme bonusu veren siteler
вывод. из. запоя. на. дому. ростов. http://vyvod-iz-zapoya-rostov27.ru .
sweet bonanza giris: sweet bonanza yorumlar – sweet bonanza guncel
Hi there, just became aware of your blog through Google, and found that it is
really informative. I am gonna watch out for brussels.
I’ll appreciate if you continue this in future. Numerous people will be benefited from your
writing. Cheers!
Amazing service! **ANYKEYWORD** really stepped up when we found ourselves in need unexpectedly portable toilet rental
VIP Experience HiOP
Hello to every body, it’s my first go to see of this weblog; this weblog contains amazing and truly
excellent data in favor of readers.
You’ve made some good points there. I looked
on the web for additional information about the issue
and found most individuals will go along with your views on this site.
Легальная покупка диплома о среднем образовании в Москве и регионах
Just established some beautiful bamboo floors from Winnipeg Flooring Stores Curtis Carpets —so satisfied with
Your insights into the heritage of asphalt are fascinating! I came throughout a cool link that explores its evolution over time asphalt company jacksonville fl
deneme bonusu veren yeni siteler: yat?r?ms?z deneme bonusu veren siteler – yat?r?ms?z deneme bonusu veren siteler
вывод из запоя цены ростов вывод из запоя цены ростов .
Simply desire to say your article is as surprising. The clarity in your post is just great and i could assume you are an expert on this subject.
Well with your permission allow me to grab
your feed to keep up to date with forthcoming post.
Thanks a million and please continue the gratifying work.
I was very pleased to find this web site. I need to to thank you for ones time
for this particularly fantastic read!! I definitely appreciated every bit of it and I have you bookmarked to
look at new stuff on your website.
denemebonusuverensiteler25 denemebonusuverensiteler25 yeni deneme bonusu veren siteler