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 10 Scariest Things About Kids Treehouse Bunk Bed Kids treehouse
bunk bed (https://nerdgaming.science/)
hello there and thank you for your info on explainer Videos ? I?ve certainly picked up something new from right here. I did however expertise a few technical issues using this web site, since I experienced to reload the web site many times previous to I could get it to load properly. I had been wondering if your web host is OK? Not that I’m complaining, but slow loading instances times will very frequently affect your placement in google and can damage your quality score if advertising and marketing with Adwords. Well I?m adding this RSS to my email and can look out for much more of your respective exciting content. Ensure that you update this again very soon.. https://www.Freelistingusa.Com/listings/explainer-video-company-india
п»їkamagra kamagra pills cheap kamagra
Viagra without a doctor prescription Canada: Buy Viagra online – buy Viagra online
You’ll Never Guess This Window Replacement Near Me’s Secrets window replacement Near Me; chessdatabase.science,
The Greatest Sources Of Inspiration Of Repair Double Glazed Window
window replacement Near Me
Kamagra 100mg price: kamagra pills – cheap kamagra
Don’t Believe These “Trends” Concerning Four Wheel Mobility Scooter 4 Wheeled Mobility scooters
Kamagra 100mg: kamagra.win – kamagra
Nice post. I was checking constantly this explainer video blog and I am impressed! Very useful info specifically the last part 🙂 I care for such info a lot. I was looking for this certain information for a long time. Thank you and best of luck. https://globalclassified.Net/536/posts/3-services/27-other/2111025-explainer-video-company-india.Html
Cheap Levitra online Vardenafil online prescription Levitra generic best price
What Double Glazed Window Leeds Will Be Your Next Big Obsession repairer
Repair Window Tools To Streamline Your Life Everyday Double Glazed Window Repairs Near Me
Hey there! I know this is somewhat off topic but I was wondering which blog
platform are you using for this site? I’m getting fed up of WordPress because I’ve had issues with hackers and I’m looking
at options for another platform. I would be awesome if you could point me in the direction of a good platform.
Feel free to visit my webpage engagement ring brisbane
Do You Think You’re Suited For Doing Double Glazing Companies Near Me?
Try This Quiz handle for double Glazed window
Viagra without a doctor prescription Canada: generic sildenafil – cheap viagra
Excellent post. I was checking continuously this explainer video blog and I am impressed! Extremely useful information specifically the last part 🙂 I care for such information a lot. I was seeking this particular info for a very long time. Thank you and best of luck. http://www.hot-web-ads.com/view/item-15619822-Explainer-Video-Company-India.html
It’s really a great and useful piece of info. I’m satisfied
that you shared this useful information with us. Please stay us
informed like this. Thanks for sharing.
Responsible For The Hiring Truck Accident Attorney Budget?
10 Ways To Waste Your Money lockhart truck Accident lawsuit (https://vimeo.com)
https://www.kzntreasury.gov.za/Lists/FRAUD%20RISK%20ASSESSMENT%20QUESTIONNAIRE/DispForm.aspx?ID=55911
You’ll Never Guess This Tiger Multi Fuel Stove’s Tricks Tiger multi Fuel stove
10 Inspiring Images About Medical Malpractice Law madison medical malpractice lawyer
Where Will Volkswagen Keys Replacement Be 1 Year From Today?
Locksmith Volkswagen Keys
It is explainer video company india perfect time to make some plans for the expaliner videos and it is time to be happy. I’ve read this post and if I could I wish to suggest you some interesting things or tips. Perhaps you can write next articles referring to this article. I desire to read more things about it! https://instantadz.com/464/posts/3-Services/27-Other/1915110-Explainer-Video-Company-India.html
“Ask Me Anything”: Ten Answers To Your Questions
About Advanced Starter Kits Free Avon Starter Kit
Levitra 10 mg buy online: Buy Vardenafil 20mg – Levitra 10 mg best price
The No. One Question That Everyone Working In Sex Machines Online Store Must Know How
To Answer sex machine Price uk
Injury Lawsuit 101: The Ultimate Guide For Beginners injury attorneys
– https://www.newstix.de/pop2/forward.php?session=&type=com&extref=m.sogou.com/web/SearchList.jsp?&sosojump=1&pid=sogou-misc-77c493ec14246d74&Keyword=vimeo.com/706788540,
Buy Vardenafil 20mg Buy generic Levitra online Levitra 20 mg for sale
hey there and thank you for your information on explainer Videos ? I have definitely picked up anything new from right here. I did however expertise a few technical points using this web site, since I experienced to reload the site a lot of times previous to I could get it to load properly. I had been wondering if your web host is OK? Not that I am complaining, but slow loading instances times will very frequently affect your placement in google and could damage your high-quality score if advertising and marketing with Adwords. Well I?m adding this RSS to my email and can look out for much more of your respective exciting content. Make sure you update this again very soon.. https://ivpaste.com/v/UjBqsORsJw