用特殊字符在Javascript中排序 [英] Sorting in Javascript with special characters

问题描述

嘿朋友，我有一个具有以下值的数组

asd sdf dsdf 1sadf * sdf！sdf @asdf _asd .sadf(sadf)sadf #sadf ^ asdf& asdf％asdf -sadf = sadf + sadf -sdf


我想按以下方式用javascript分为三个部分.

1)从特殊字符开始的单词
2)从数字开始的单词
3)从字母开始的单词.

因此，这应该是排序数组的顺序..

请帮帮我.. !!

Hey friends i have an array with the following values

asd sdf dsdf 1sadf *sdf !sdf @asdf _asd .sadf (sadf )sadf #sadf ^asdf &asdf %asdf -sadf =sadf +sadf -sdf


and i want to sort it in javascript in the following way in to three parts.

1) word starting from special character
2) word starting from digit
3) word starting from alphabets.

So this should be the sequence of the sorted array..

Please help me out..!

推荐答案

您可以将排序函数传递给JavaScript的array.sort().

You can pass a sort function to JavaScript''s array.sort().

function sortFunction(a, b) {
  // your array elements will be passed to this function as a, b
  // TODO:
  //   compare a to b
  //   if a should come before b, return -1
  //   if a should come after b, return 1
  //   if a and b should be considered equal, return 0
  return 0;
}

var myarray = ['asd', 'sdf', ..., '-sdf'];
myarray.sort(sortFunction);

注意:在Google中搜索"javascript数组排序"，找到了此 [

Note: Searched Google for "javascript array sorting", found this[^] as the first result.

这是正确的答案..！

Here is the correct answer..!

function MySort(alphabet)
{
    return function(a, b) {
        var index_a = alphabet.indexOf(a[0]),
        index_b = alphabet.indexOf(b[0]);

        if (index_a === index_b) {
            // same first character, sort regular
            if (a < b) {
                return -1;
            } else if (a > b) {
                return 1;
            }
            return 0;
        } else {
            return index_a - index_b;
        }
    }
}

var items = ['asd','sdf', 'dsdf', '1sadf', '*sdf', '!sdf', '@asdf', '_asd', '.sadf', '(sadf', ')sadf', '#sadf', '^asdf', '&asdf', '%asdf', '-sadf', '=sadf', '+sadf', '-sdf', 'sef'],
sorter = MySort('*!@_.()#^&%-=+01234567989abcdefghijklmnopqrstuvwxyz');

console.log(items.sort(sorter));

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