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
buy cipro online without prescription: buy ciprofloxacin – cipro for sale
Boat Accident Case Techniques To Simplify Your Daily Life Boat Accident Case Trick That Every Person Must Learn Boat Accident
Gгeetingѕ! I’νe been rｅading your weblog for a long timе now
and finally got the bravery to go ahead and ցive yοu a shout
out from Porteｒ Texas! Juѕt wanted ttߋ mention keep ᥙp the fahtastic work!
Feeⅼ fｒee to surf to my webpage – baca disini
What Is The Reason Prada Hand Bag Is The Right Choice For You?
prada Bag Men
Learn The Vintage Avon Perfume Tricks The Celebs Are Using Vintage avon perfume
(littleyaksa.yodev.net)
order lisinopril 20mg: order lisinopril without a prescription – 50 mg lisinopril
20 Trailblazers Setting The Standard In Railroad Injuries
Compensation Railroad injuries Attorney
20 Fun Details About Folding Mobility Scooters For Sale travel
mobility Scooters for sale (mozillabd.science)
Thank you for the good writeup. It if truth be told used to
be a enjoyment account it. Look complicated to more
introduced agreeable from you! By the way, how could we communicate?
Mʏ spouse and I stumƄled over here different web address
annd thought I shhould check things ᧐ut. I like what I see so now i аm following you.
Look forwaed to cheｃking out your web page agɑin.
Look aat my web site … jamuslot
What’s The Job Market For Double Glazed Window Repairs Professionals?
double glazed window repairs
How Automated Backlink Builder Software Altered My Life For The Better Backlink Management software
Five Killer Quora Answers To Cerebral Palsy Attorneys cerebral palsy attorneys (Richie)
http://lisinopril.network/# buy prinivil
You’ll Be Unable To Guess Mazda Dealership Key Replacement’s Tricks mazda dealership Key replacement – https://johansson-burke.mdwrite.net –
http://ciprofloxacin.tech/# ciprofloxacin generic
https://lisinopril.network/# zestril tablet
Unexpected Business Strategies That Aided Window Repair Near Achieve Success
upvc Window repair near me
Undisputed Proof You Need Double Glazing Supplies Near Me replacing double glazed windows – http://www.cheaperseeker.com –
http://cytotec.club/# cytotec buy online usa
I’m curious to find out what blog system you’re working with?
I’m having some small security issues with my latest website and I’d like
to find something more secure. Do you have any recommendations?
What’s The Current Job Market For Personal Injury Litigation Professionals?
Personal injury
hi!,I like your writing so much! proportion we be in contact extra approximately your post on AOL?
I need an expert in this house to resolve my problem.
May be that is you! Looking forward to peer you.
my web page – silver medals
cipro online no prescription in the usa ciprofloxacin cipro online no prescription in the usa
The Most Underrated Companies To Follow In The Scooter To Buy Near Me Industry Buy Mobility Scooter Batteries
The Top Reasons Why People Succeed In The Boat
Accident Attorneys Industry boat accident lawyer
Nice respond in return of this question with firm arguments and describing everything about that.
Guide To Double Sided Wood Burner: The Intermediate Guide In Double Sided Wood Burner double sided Wood Burner
20 Resources To Make You More Successful At Best CS GO Case Opening Sites gamma case
canada pharmacy coupon