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
prescription drugs online without https://pharm24.pro/# ed meds online
There Is No Doubt That You Require Peritoneal Mesothelioma Asbestos Mesothelioma Attorneys
Реально ли приобрести диплом стоматолога? Основные шаги
Medicine prescribing information. What side effects?
buy inderal tablets
All trends of medicament. Get now.
indian pharmacies safe: Indian pharmacy to USA – Online medicine home delivery
ed natural treatment https://pharm24.pro/# ed cures that actually work
Как купить аттестат 11 класса с официальным упрощенным обучением в Москве
reputable indian online pharmacy: Best online Indian pharmacy – indian pharmacies safe
mexican online pharmacies prescription drugs Legit online Mexican pharmacy medication from mexico pharmacy
A reliable law firm that is specialized in mesothelioma can aid families and victims in receiving compensation. Mesothelioma lawyers understand asbestos case – Jere, litigation and can aid victims with trust
fund claims, lawsuits, or VA benefits.
How To Get More Value Out Of Your Folding Treadmills With Incline Treadmill foldable
Why Electric Fireplace Wall Mounted Is Harder
Than You Imagine fireplaces shop [ufiy.com]
11 “Faux Pas” You’re Actually Able To Create Using Your Retro Fridge Freezer 50 50 Space-Saving Design Side By Side Fridge Freezer
mexican drugstore online mexican pharm 24 mexican pharmaceuticals online
Hey are using WordPress for your blog platform? I’m new to the blog world
but I’m trying to get started and create my own. Do you need any html coding knowledge to make your own blog?
Any help would be really appreciated!
куплю аттестат камень [url=https://prema-diploms.ru/]prema-diploms.ru[/url] .
I am truly glad to read this website posts which
contains lots of helpful facts, thanks for
providing these kinds of data.
whoah thiѕ blog is wonderful i love reading ｙouг posts.
Keep up the good woｒk! You alгeady know, lots оf people ɑre hunting rоund for tһis info, yoou can heⅼp them grｅatly.
Havee а looҝ at my webpage; Cuantoto Wap Login
Монтаж и установка каминов для дачи
At this time it seems like Expression Engine is the best
blogging platform out there right now. (from what I’ve read) Is that what you’re using on your blog?
online shopping pharmacy india medicines from India best online pharmacy india
https://pharm24.pro/# best cure for ed
buy prescription drugs without doctor
canadian online drugs: low cost pharmacy – male erectile dysfunction
drugs causing ed: low cost pharmacy – viagra without a doctor prescription walmart
pharmacy drugs cheap drugs natural ed treatment
The Most Innovative Things That Are Happening With Semi Truck Accident truck accident attorneynear
me (http://49.51.81.43)
prescription drugs online without doctor http://pharm24.pro/# how to help ed
7 Secrets About Online Mystery Box That No One Will Tell You mystery box opening
For many years, I have actually battled unpredictable blood sugar level swings that left
me feeling drained and inactive. But considering that integrating
Sugar my energy levels are currently stable and regular, and I no more strike a wall in the mid-days.
I value that it’s a gentle, natural strategy that does not come with any
type of unpleasant negative effects. It’s genuinely transformed my every day life.
Thanks for one’s marvelous posting! I certainly enjoyed reading it,
you are a great author.I will be sure to bookmark your blog and may come back in the future.
I want to encourage yourself to continue your great job, have a nice morning!