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
The 9 Things Your Parents Taught You About
Pushchairs Prams Pushchairs prams Pushchairs
Wow, wonderful weblog layout! How lengthy have
you been blogging for? you made running a blog look easy.
The full look of your web site is fantastic, as well as the content material!
Excellent blog! Do you have any recommendations for aspiring writers?
I’m hoping to start my own blog soon but I’m a little lost on everything.
Would you advise starting with a free platform like WordPress or go for a
paid option? There are so many choices out there that I’m
completely overwhelmed .. Any tips? Thanks!
In this instance, the life insurance firm’s money.
Also visit my webpage Bookmarks
An artificial USP human development hormonal agent (somatropin).
my site Bookmarks
It’s remarkable to visit this web page and reading the views of all friends on the topic of this piece of writing,
while I am also keen of getting experience.
Feel free to surf to my blog :: agenzia traduzioni tecniche
You’ll Never Be Able To Figure Out This Upvc Window Repairs Near
Me’s Tricks upvc window repair (isaevclub.Ru)
The 10 Most Scariest Things About Mid Sleeper childrens midi bed (https://bookmarkproduct.com/story17754045/15-fun-and-wacky-hobbies-that-ll-make-you-smarter-at-mid-sleeper-with-desk-and-storage)
I want to to thank you for this excellent read!!
I definitely loved every little bit of it.
I’ve got you saved as a favorite to look at new things you post…
Fortunately there are enough people on the earth to help every employer that’s presently round.
Many individuals who call Tampa, FL house are also fortunate enough to use for travel and leisure jobs.
Some individuals turn out to be actors when they want to
escape from their dull lives and the people round them.
Younger lads around the globe are at all times running around acting like firemen or policemen whereas
playing their games. Some of them will even gown up in a business suit and pretend to be a flight pilot.
That is all fun for them during their early years until they finally attend flight faculty and
actually change into educated pilots. Pilots are lucky
enough to go to quite a lot of locations which are situated on the map.
Actors and actresses dwelling in New York and California will at all
times get the chance to visit foreign locations while they’re filming
a film. One particular actress was very happy to visit England when she was requested to painting
a princess inside a movie that was created by Disney Studios.
The Little Known Benefits Of Wall Mounted Electric
Fireplace stone fireplaces; Elmo,
pharmacie en ligne france fiable pharmacie en ligne pas cher Pharmacie en ligne livraison Europe
Developers from around the globe pitch you ideas.
my blog :: Bookmarks
We make every effort to be the most effective auto accident law in chicago lawyer Tampa fl.
NewULife Ranks. Invite to my NewUlife Review.
Check out my web page: volkswagen service department near me
Allow me show you in my evaluation of NewULife.
Look at my site: vigabatrin 500mg brand name
You can certainly see your skills within the work you write.
The sector hopes for more passionate writers like you who are not afraid to mention how they believe.
Always follow your heart.
http://clssansordonnance.icu/# pharmacies en ligne certifiГ©es
Prix du Viagra 100mg en France: Viagra prix – Viagra homme sans prescription
Prix du Viagra 100mg en France viagra en ligne Viagra sans ordonnance 24h Amazon
1xBet Bonus Code https://actuchomage.org/includes/wkl/code_promo_69.html
A 1xBet bonus code is a specific type of promo code that unlocks bonuses like deposit matches, free bets, or free spins. These codes are typically provided to new users during registration but can also be available to existing users through promotions.
1x Promo Code Bangladesh https://idematapp.com/wp-content/pages/1xbet_promo_codes_free_bonus_offers.html
1xBet offers specific promo codes for users in Bangladesh, providing them with region-specific bonuses such as free bets, deposit matches, or free spins. These codes enhance the betting experience for Bangladeshi users.
Is Technology Making Situs Togel Online Better Or Worse? Situs Toto
https://vgrsansordonnance.com/# Viagra homme prix en pharmacie sans ordonnance
About Our Truck Mishap Lawyers Rankings.
Here is my blog: Bookmarks
Promo Code on 1xBet https://actuchomage.org/includes/wkl/code_promo_69.html
Promo codes on 1xBet unlock bonuses like deposit matches, free bets, or free spins. These codes can be entered during registration or when making a deposit to claim the corresponding bonus.
Профессиональная помощь адвоката по уголовным делам в столице, которую стоит выбрать, Услуги адвоката по уголовным делам в Москве: быстро, качественно, эффективно, Эксклюзивные услуги адвоката по уголовным делам в столице, обратитесь за качественной помощью, звоните сейчас
Адвокат по уголовным делам в Москве Адвокат по уголовным делам в Москве
http://vgrsansordonnance.com/# Viagra sans ordonnance 24h suisse
1xBet Promotion Code https://actuchomage.org/includes/wkl/code_promo_69.html
A 1xBet promotion code is an alphanumeric string that unlocks special promotions on the platform, such as free bets, deposit bonuses, or free spins. These codes are often provided as part of special events or partnerships.
Viagra homme prix en pharmacie Viagra sans ordonnance 24h Viagra 100mg prix