jQuery Tablesorter - 自定义解析器不工作
我正在尝试为 jQuery 插件 Tablesorter 编写一个自定义解析器。这个想法是让它在第一次点击时按降序对数字进行排序。
但是，当我对表格进行排序时，顺序不会改变。有时，几行会移动，但大多数行保持不变。这是代码：
$.tablesorter.addParser({
id: 'desc',
is: function(s) { return false },
format: function(s) {
return 1.0 / parseFloat( s.replace(/,/g,'') );
},
type: 'numeric'
});
我编写的其他解析器工作正常。我尝试用 9999 减去数字，而不是 1.0 除以它，以防浮点数出现问题（不走运）。
I'm trying to write a custom parser for the jQuery plugin, Tablesorter. The idea is for it to sort the numbers in descending order on the first click.
However, when I sort the table, the order doesn't change. Sometimes a few rows move, but most of them stay the same. Here is the code:
$.tablesorter.addParser({
id: 'desc',
is: function(s) { return false },
format: function(s) {
return 1.0 / parseFloat( s.replace(/,/g,'') );
},
type: 'numeric'
});
The other parsers I've written are working fine. I tried 9999 minus the number instead of 1.0 divided by it, in case it was a problem with floats (no luck).
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我找到了解决方案。我在每列中有一些空单元格，它们被解析为“NaN”。我不知道为什么这会搞砸排序（空白单元格间歇性地与常规数字间隔开，任何东西都没有顺序）。
简而言之，这段代码适用于格式函数：
I found a solution. I had some empty cells in each column, which were being parsed as "NaN". Why this screwed up the ordering, I don't know (blank cells were intermittently spaced with regular numbers, there was no order to anything).
In short, this code works for the format function:
要以相反的数字顺序对某些内容进行排序，对我来说，自然的方法是将其乘以 -1，而不是您尝试过的方法。
至于解析器本身，我注意到的唯一区别是您返回的是实际数字，而 Tablesorter 站点上的解析器示例 返回一个字符串。也许在返回之前将值转换回字符串会起作用吗？
To sort something in reverse numeric order, to me the natural way to go is to multiply it by -1, rather than the methods you've tried.
As to the parser itself, the only difference I notice is that you are returning an actual number, whereas the parser example at the Tablesorter site returns a string. Perhaps converting the value back to string before returning it would work?