JS按对象属性排序对象数组(美元) [英] JS order array of objects by object property (dollars)

问题描述

我花了很长时间才弄清楚这个问题.我的 vuejs 应用程序中有一个对象数组，如下所示:

I am having a heck of a time figuring this one out. I have an array of objects in my vuejs app like so:

var food= [{'name':'apples','price':'222.30'},{'name':'bananas','price':'99.30'},{'name':'oranges','price':'199.30'}];

当我尝试按价格排序时，我同时尝试

When I try to sort by price, I am trying both

return food.sort((a, b) => (a.price> b.price) ? 1 : -1);
AND
return _.orderBy(food, 'price')

然而，这似乎将 99.30 美元的价格解释为高于 222.30 美元 - 我假设是因为 9 高于 2?

However it seems this interprets the price $99.30 as higher than $222.30 - I am assuming because 9 is higher than 2?

任何帮助将不胜感激！我也想知道是否有办法从大到小排序，反之亦然.

Any help would be appreciated! I am also wondering if there is a way to order largest to smallest and vice versa.

推荐答案

您必须将价格转换为数字并在排序回调中使用

You have to convert the price to a number and use in your sort callback

return food.sort((a, b) => parseFloat(a.price) -  parseFloat(b.price));

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