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
I enjoy, result in I found exactly what I was having a look for.
You have ended my four day long hunt! God Bless you man. Have
a great day. Bye
Great blog here! Also your website loads up fast!
What web host are you using? Can I get your
affiliate link to your host? I wish my website loaded up as
quickly as yours lol
Amazing things here. I am very happy to peer your
post. Thanks so much and I’m having a look ahead to contact you.
Will you kindly drop me a mail?
Perfectly writtesn content, Really enjoyed reading through.
My blog post … great pool cue [Mikki]
It is perfect time to make a few plans for the longer term and
it is time to be happy. I have read this publish and if I may just I want
to suggest you some attention-grabbing issues or suggestions.
Perhaps you could write next articles relating to this
article. I wish to learn even more things approximately it!
This website truly has all the information I wanted
about this subject and didn’t know who to ask.
With havin so much content and articles do you ever run into any issues of plagorism or copyright
violation? My website has a lot of exclusive content I’ve either created myself or outsourced but it looks like a lot of it is popping it up all over the internet without my permission. Do you know any techniques to help stop content from being stolen? I’d definitely appreciate it.
I have read so many posts regarding the blogger lovers except this post is genuinely a fastidious post, keep it up.
I like the helpful info you provide in your articles. I will
bookmark your weblog and check once more here frequently.
I am quite sure I’ll be informed plenty of new stuff right right here!
Best of luck for the following!
Please let me know if you’re looking for a author for
your blog. You have some really great posts and I think I would
be a good asset. If you ever want to take some of the load off,
I’d absolutely love to write some material for your blog in exchange
for a link back to mine. Please shoot me an email if
interested. Regards!
Free porn
I believe everything composed was very reasonable.
But, think about this, suppose you added a little information? I mean, I don’t want
to tell you how to run your blog, but suppose you added a title to
possibly grab people’s attention? I mean JS 依照元素出現數量排序 – 馬老師 雲端研究室 is a little vanilla.
You might look at Yahoo’s home page and see how they create news titles to get viewers to click.
You might add a video or a related picture or two to get readers interested about what you’ve got to say.
Just my opinion, it might bring your posts a little livelier.
You can certainly see your enthusiasm in the work you write.
The world hopes for more passionate writers such as you who
are not afraid to mention how they believe.
All the time go after your heart.
Thanks for your marvelous posting! I certainly enjoyed reading it, you happen to be a great author.
I will be sure to bookmark your blog and will eventually come back in the foreseeable future.
I want to encourage continue your great job, have a nice weekend!
Thanks for your marvelous posting! I actually enjoyed reading it,
you will be a great author.I will make certain to bookmark your
blog and will eventually come back sometime soon. I want to encourage you to continue your great job, have a nice morning!
Just want to say ｙour article іs as amazing. Tһｅ clarity in yoᥙr post is just spectacular аnd
і can assume you’ге an expert on tһis subject.
Wеll wіth your permission alⅼow me to grab үour feed to keep up to date wіth forthcoming post.
Tһanks a millіon and рlease keep ᥙp the rewarding woгk.
Μy h᧐mepage casino (Dina)
When fever strikes, seeking medical attention becomes
crucial.
While primary care doctors are typically the
go-to for many health concerns,
urgent care centers play a vital role in managing
and treating fevers.
Let’s delve into the role of urgent care facilities in fever management.
Immediate Assistance:
Urgent care centers are designed to provide immediate
medical attention for non-life-threatening conditions,
such as fever. Unlike primary care offices, urgent care facilities often offer extended
hours,
including evenings and weekends. This accessibility ensures that
individuals can seek prompt care when their
123
whoah this weblog is great i like reading your posts.
Stay up the good work! You realize, a lot of people are hunting around for this information, you
could help them greatly.
Your means of explaining everything in this paragraph is genuinely
pleasant, every one be capable of without difficulty be aware of it,
Thanks a lot https://www.minientrepotssaintcalixte.ca/mini-entrepot-la-plaine/
asbestos attorney cancer lawyer mesothelioma (Margo)
Best Asbestos Lawyers
I?ll right away clutch your rss as I can not find your email subscription link or e-newsletter service.
Do you?ve any?
Please permit me understand so that I could subscribe.
Thanks.| https://www.doupando.com/en/blog/post/25-a-great-deal
What’s up i am kavіn, its my first ᧐ccaѕіon to commenting anyplace,
when i read this piece of writing i thoսght i could also maҝe comment duee tо this sensible
piece of writing.
Take a look at my bloց; Tranh sơn mài treo phòng khách
I don’t even know how I ended up here, but I thought this post was good.
I don’t know who you are but certainly you are going to a famous blogger
if you are not already 😉 Cheers!
Thіs design is steller! Y᧐u certainoy know how to keeρ a reader amused.
Between youyr wit and your videߋs, I was almost
moved to start my own blog (well, almost…HaHa!) Grｅat job.
I really lоvеd what you had to say, and more than that, how you
presented it. Too cool!
my page: Tranh sơn mài treo phòng khách
What’s up, its nice piece of writing on the topic of
media print, we all understand media is a wonderful source of data.
Excellent blog here! Additionally your web site a
lot up fast! What web host are you the usage of?
Can I am getting your associate hyperlink on your host?
I want my site loaded up as fast as yours lol
Your means of telling all in this paragraph is truly fastidious,
every one be able to simply understand it, Thanks
a lot https://missgriffintown.com/about-us/
Ϲan I simply say what a comfort to find someboԁy that genuinely understands what they
are dіsｃսssing on the web. Y᧐u definitely realuze how to bring a problem to
light and make it important. A lot more people оught to check this out and uderstand this side of the story.
I can’t belieνe you aren’t more popular given that you
most ccertainly have the gift.
Also visit my webpage: Jasa backlink berkualitas
http://chinavisa33.s3-website.ap-east-1.amazonaws.com/research/chinavisa33-(40).html
Make certain you have the right costume, sneakers, and extra to look good on the large day.