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
https://molnupiravir.life/# molnupiravir kaufen schweiz
Looking for a place to start your crypto gambling adventures? https://cryptocasinos.life/yes-absolutely-the-online-bitcoin-casinos-recommended-here-have-all-integrated.html
We spent countless hours of researching different casinos in an attempt to find the best casino to play at, and to help others do the same.
Thank you for the auspicious writeup. It in truth was
a amusement account it. Glance complex to far delivered
agreeable from you! By the way, how can we communicate?
Wow, this piece of writing is fastidious, my younger sister is analyzing these things, thus I am
going to let know her.
tadalafil 5mg price amoxil brand order prednisone
https://tamoxifen.best/# aromatase inhibitors tamoxifen
A motivating discussion is worth comment. There’s no doubt that that you should write more about
this topic, it may not be a taboo matter but generally folks don’t discuss
these subjects. To the next! Many thanks!!
WOW just what I was searching for. Came here by searching for taruhan bola
I couldn’t resist commenting. Well written!
I think the admin of this site is in fact working hard for his web page,
as here every data is quality based stuff. canada drugs [Richelle]
Quickly, Darsha was posting quick video snippets — lower than 2 minutes — on his YouTube
channel, Redux Desires Lab. And the thrill of finding an viewers — most of whom were positive to him — impressed Darsha to upload even more clips.
Then his third video hit greater than 2 million views.
And a day later, another hit 2.6 million views.
By the tip of his first day uploading, he’d made $3,700.
The Watergate hearings on Capitol Hill ahead of President Richard Nixon’s resignation from workplace in 1974 changed American politics a lot that just about any major controversy winds up
with a nickname that includes a “-gate” affixed to the end.
Courtroom dramas have long been a pillar of American pop tradition. Ali said he incorporates emoji with dramatic titles like Johnny Depp’s Lawyer Ben Chew Blasts Amber Heard as a
result of that’s the culture of the websites he grew up with, like
Twitter, Tumblr and MySpace.
https://stocktradestar.livejournal.com/profile
First off I want to say excellent blog! I had a quick question that I’d like to ask if you don’t mind.
I was interested to find out how you center yourself and clear your mind
prior to writing. I have had trouble clearing my thoughts in getting my ideas
out. I do take pleasure in writing however
it just seems like the first 10 to 15 minutes are generally lost just trying to figure out how to begin. Any suggestions or tips?
Thanks!
Hollanda Ev Taşıma, Hollanda Ev Taşıma
My brother recommended I might like this website. He was
totally right. This post actually made my day.
You cann’t believe just how a lot time I had spent
for this information! Thank you!
Hi, this weekend is fastidious in support of me, since this moment i am reading this fantastic educational
piece of writing here at my residence.
You could definitely see your enthusiasm within the work you write.
The sector hopes for more passionate writers such
as you who are not afraid to mention how they believe.
Always follow your heart.
Normally I do not learn article on blogs, however I wish
to say that this write-up very forced me to try and do so!
Your writing taste has been surprised me. Thanks, quite great
article.
My spouse and I stumbled over here by a different website
and thought I might check things out. I like what I see so i
am just following you. Look forward to going over your web page for a second time.
Just what I was searching for, thank you for posting.
Sports betting. Bonus to the first deposit
up to 500 euros.
online casino
Why visitors still use to read news papers when in this technological world all is existing
on web?
https://tamoxifen.best/# tamoxifen for sale
%%
my blog :: personality database
We are a group of volunteers and opening a new scheme in our
community. Your site provided us with helpful info to work on. You’ve done an impressive process and our whole neighborhood shall
be thankful to you.
Wonderful beat ! I would like to apprentice while you amend your website, how
could i subscribe for a blog site? The account aided me a acceptable deal.
I had been tiny bit acquainted of this your broadcast offered bright clear idea
Hey there! I’ve been following your website for a while now and finally
got the courage to go ahead and give you a shout out from New Caney Tx!
Just wanted to tell you keep up the fantastic work!
Feel free to surf to my web-site :: personal craiglist
I have read so many articles or reviews regarding the blogger lovers
except this piece of writing is actually a good article, keep it up.
%%
Feel free to visit my blog post tritype Test
%%
Feel free to surf to my homepage … togel Singapore