javascript - 使用过滤器和排序将元素放在数组的开头 - javascript

Question

我有一个对象数组，我想在其中找到某些元素并将它们放在开头或数组中。我开始通过使用 find 功能来做这件事，但现在因为可以有多个元素我切换到 filter 功能，但是现在它停止工作了，我该如何解决这个问题？
输入示例:

colors= [
   {name: "green", popular: true},
   {name: "yellow", popular: false},
   {name: "red", popular: true},
   {name: "black", popular: true},
   {name: "red", popular: true}
]

功能:

sort(colors) {
    let red= colors.filter(color=> colors.name === "red")

    if(red){
        colors.sort(function(x,y){ return x == red? -1 : y == red? 1 : 0; });
    }

    return colors
}

预期输出:

colors= [
   {name: "red", popular: true},
   {name: "red", popular: true},
   {name: "green", popular: true},
   {name: "yellow", popular: false},
   {name: "black", popular: true}
]

通过使用过滤器红色变量返回一个数组而不是像 find 这样的对象

Answer 1

您可以将红色部分排序到顶部。

const
    colors= [{ name: "green", popular: true }, { name: "yellow", popular: false }, { name: "red", popular: true }, { name: "black", popular: true }, { name: "red", popular: true }];

colors.sort((a, b) => (b.name === "red") - (a.name === "red"));

console.log(colors);