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
There are many reasons to get involved in sports betting.
From the possibility of making an income, to the excitement and the chance to root for your
team of choice, to the overall viewing experience.
Here is my web-site … Bets
bitcoin dark web tor markets 2022
tor market links tor market
alphabay link alphabay darkweb link
darknet site tor markets links
alphabay darkweb url alphabay darknet
alphabay darkweb url alphabay darknet link
%%
my site: Best Pornstars
bitcoin dark web onion market
onion market onion market
dark market list dark web market list
dark market url darknet market links
alphabay market link alphabay darkweb
%%
Also visit my blog; Tritype test
dark web sites links deep dark web
alphabay link alphabay market url
darkmarket list deep web drug markets
alphabay market alphabay market url
dark market dark market url
There are numerous advantages for playing online poker.
It is easy to play, and there are no waiting lists and no
second-hand smoking. You can also play a wide range of games
(Bennett).
There are many options for treatment for addiction to gambling.
Some of them include one-on-one counseling, medication, and lifestyle changes.
This can turn into an addiction if you are unable to stop yourself from engaging in it.
my page: Experience
tor market links dark web markets
Saved as a favorite, I love your website!
Also visit my website Buy Cocaine Online
%%
Check out my webpage – mesothelioma attorney
%%
Feel free to visit my website; jelly hash cbd; Lamont,
alphabay onion alphabay darknet link
darknet drug store tor darknet
dark web market list dark web sites
Merely wanna tell that this is very helpful, Thanks for taking your time to write
this.
Also visit my homepage … metal building manufacturers
tor market links tor markets