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://maxpillsformen.com/# Buy Tadalafil 5mg
Medicines information for patients. What side effects can this medication cause?
where can i get dilantin prices
All trends of medication. Read information here.
Pills information leaflet. What side effects can this medication cause?
how to get generic levitra no prescription
Everything information about medicament. Get here.
Доступное продвижение сайтов в топ яндекса
вызов нарколога на дом частная скорая помощь [url=www.mediaworld.ukrbb.net/viewtopic.php?f=49&t=5477]вызов нарколога на дом частная скорая помощь[/url] .
Have you ever thought about writing an ebook or guest authoring on other blogs?
I have a blog based on the same topics you discuss and would love to have you share some stories/information. I know my readers would value your work.
If you are even remotely interested, feel free to send me an email.
Great suggestions on pet dog grooming! I constantly have problem with brushing my pet dog’s thick layer portable dog groomers
вызвать наркологическую помощь http://justforum.bestforums.org/viewtopic.php?f=26&t=4785/ .
http://maxpillsformen.com/# buy cialis pill
Exploring innovative designs present day enhances aesthetic appeal properties owned thoroughly enjoyed greatly overall positive impact made greatly appreciated locally recognized endlessly inspiring others seek same goals achieved successfully too ! roofers near me
I lately attended a jiu-jitsu workshop that opened my eyes to brand-new methods! For those that want to explore more regarding advanced relocations, have a look at jiu jitsu near me for some superb insights
What’s up, the whole thing is going well here and ofcourse every one is sharing information, that’s actually excellent,
keep up writing.
наркологическая скорая в москве [url=https://taksafonchik.borda.ru/?1-2-0-00001312-000-0-0-1730876668]наркологическая скорая в москве[/url] .
Howdy! This is my first visit to your blog! We are a group of volunteers and starting a new initiative in a community in the same niche.
Your blog provided us useful information to
work on. You have done a wonderful job!
When someone writes an article he/she maintains the plan of a user in his/her brain that how a user can understand it.
Therefore that’s why this post is amazing. Thanks!
copd exacerbation prevention support services copd exacerbation prevention education copd exacerbation prevention symptom management applications
medical monitoring for copd copd symptoms copd exacerbation prevention support group facilitation
copd education
copd exacerbation severity scale copd exacerbation prevention advocacy campaigns fatigue in copd
copd rehabilitation programs chronic respiratory failure in copd copd exacerbation severity scale
вызов нарколога на дом частная скорая помощь вызов нарколога на дом частная скорая помощь .
https://maxpillsformen.com/# п»їcialis generic
http://fastpillsformen.com/# Order Viagra 50 mg online
загранпаспорт срочно москва загранпаспорт срочно москва .
загранпаспорт срочно загранпаспорт срочно .
ed online treatment: cheap cialis – ed pills cheap
This was very beneficial. For more, visit Injury Recovry Center
Your discussion on pressure washing recommendations is so worthwhile! Thanks for sharing those data with us pressure washing san antonio tx
Such diverse talents exist within this city’s construction industry—it truly showcases what being part of such vibrant communities means today still today too! driveway coat sealer
загранпаспорт стоимость загранпаспорт стоимость .
cost of nexium
I appreciate your advice on choosing colors for exterior painting roofers
An outstanding share! I have just forwarded this onto a coworker who had been conducting a little research on this.
And he in fact bought me breakfast because I stumbled upon it for him…
lol. So allow me to reword this…. Thank YOU for the meal!!
But yeah, thanks for spending the time to discuss this matter here on your web page.
Well done! Discover more at injury lawyers