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
best canadian online pharmacy: precription drugs from canada – usa canada pharm
buying from canadian pharmacies: USACanadaPharm – USACanadaPharm
http://usacanadapharm.com/# usa canada pharm
canada drugs online review canadian pharmacy ratings USACanadaPharm
мелбет кг https://melbet1001.ru .
1win.online mostbet5007.ru .
https://usacanadapharm.shop/# usa canada pharm
Где приобрести диплом специалиста?
Мы готовы предложить дипломы любой профессии по приятным тарифам. Для нас важно, чтобы дипломы были доступны для подавляющей массы граждан. Быстро и просто приобрести диплом института diplomnie.com/vot-neskolko-variantov-sootvetstvuyushix-vashim-trebovaniyam-kupit-diplom-s-reestrom-garantiya-podlinnosti-diplom-s-registratsiej-v-reestre-ofitsialno-diplom-vuza-s-proverkoj/
canadian discount pharmacy: USACanadaPharm – reddit canadian pharmacy
best place to buy accutane online uk Get medicine info. Prescribing details available. buy accutane online fast delivery
Great video clip collection! 4K porn is the future, aren’t it?
USACanadaPharm: USACanadaPharm – canadian world pharmacy
мелбет kg melbet1002.ru .
Откройте тренды на в нашей сети. Мы предоставляем широкий ассортимент для оптимального выбора по https://xn--kr33-rzb.com
Мы изготавливаем дипломы любой профессии по выгодным тарифам. Дипломы изготавливаются на подлинных бланках государственного образца Быстро заказать диплом университета diplom-top.ru
Hi, every time i used to check weblog posts here early in the dawn, because i
love to find out more and more.
buy viagra
Throᥙgh doing thіs you get through to familiarize yourself has to how the machines
are played internet. In todɑy’s world of technology үou is
now able to play online sⅼߋt games. Do not bet any cash that you Ԁon’t һold.
Αlѕo ѵisit my website … https://gizmodo.uol.com.br/top-10-slot777-th/
A 19th century grand piano is also in the receiving area complemented by
a vintage wooden radio in one corner of the room.
The grand daughter of the original owner, Galdiola Arguelles-Cabuñag is now the owner
and the one who maintains the historical house. During the house construction, Sariaya and
the Province of Quezon were suffering from
a crisis brought by a pest called leaf miners. The instrument cluster continued
the tradition of easy-to- read gauges with two large circular gauges with
an engine turned, sometimes also called perlée appearance.
A bomb disposal unit was called by the American forces to check
the bomb and found out that it was live The bomb squad unit successfully removed the bomb and finally the house was out of danger.
Three bombs were dropped in the vicinity of the house.
The second one was dropped behind the house and created a 20- foot- deep crater.
https://usacanadapharm.shop/# canadian online pharmacy
Приобрести диплом возможно через официальный сайт компании. newsinweek.ru/kupit-diplom-s-proverkoy
Где купить диплом по нужной специальности?
Мы предлагаем дипломы любых профессий по приятным ценам. Для нас очень важно, чтобы документы были доступны для подавляющей массы наших граждан. Быстро и просто заказать диплом любого института diplomk-v-krasnodare.ru/kupit-ofitsialnij-diplom-s-zaneseniem-v-reestr-13/
melbet https://melbet1002.ru/ .
If some one wants expert view regarding blogging and site-building then i advise
him/her to visit this webpage, Keep up the fastidious work.
buy viagra
USACanadaPharm: USACanadaPharm – usa canada pharm
usa canada pharm: USACanadaPharm – canadian pharmacy drugs online
canadian pharmacy no scripts: USACanadaPharm – online canadian drugstore
https://smart-lily-dbgzhk.mystrikingly.com/blog/ce881420a9c
Hello mates, how is the whole thing, and what
you want to say about this article, in my view its
genuinely awesome designed for me.