我创建了这个对象数组：
const palette = [
{
color: 'Blue',
brightness: 'Soft',
},
{
color: 'Blue',
brightness: 'Medium',
},
{
color: 'Blue',
brightness: 'Principal',
},
{
color: 'Magenta',
brightness: 'Soft',
},
{
color: 'Magenta',
brightness: 'Medium',
},
{
color: 'Magenta',
brightness: 'Principal',
}
]
我想要一个带有对象的新数组，顺序如下：
const colorOrder = ['Blue', 'Magenta']
const brightnessOrder = ['Principal', 'Soft', 'Medium']
所以这就是我想要的结果：
const colors = [
{
color: 'Blue',
brightness: 'Principal',
},
{
color: 'Blue',
brightness: 'Soft',
},
{
color: 'Blue',
brightness: 'Medium',
},
{
color: 'Magenta',
brightness: 'Principal',
}
{
color: 'Magenta',
brightness: 'Soft',
},
{
color: 'Magenta',
brightness: 'Medium',
},
]
我尝试这个功能：
function sortArrayByAnotherArray(array: any[], order: number[] | string[], key: string) {
const newArray = array.slice(0).sort((a, b) => {
const A = a[key]
const B = b[key]
return order.indexOf(A) < order.indexOf(B) ? 1 : -1
})
return newArray
}
我这样称呼它：
const palette1 = sortArrayByAnotherArray(
palette,
brightnessOrder,
'brightness'
)
const palette2 = sortArrayByAnotherArray(
palette1,
colorOrder,
'color'
)
console.log('\n', palette)
console.log('\n', brightnessOrder)
console.log(palette1)
console.log('\n', colorOrder)
console.log(palette2)
结果是：
`
` [ { color: 'Blue', brightness: 'Soft' },
{ color: 'Blue', brightness: 'Medium' },
{ color: 'Blue', brightness: 'Principal' },
{ color: 'Magenta', brightness: 'Soft' },
{ color: 'Magenta', brightness: 'Medium' },
{ color: 'Magenta', brightness: 'Principal' } ]
`
` [ 'Principal', 'Soft', 'Medium' ]
[ { color: 'Blue', brightness: 'Medium' },
{ color: 'Magenta', brightness: 'Medium' },
{ color: 'Blue', brightness: 'Soft' },
{ color: 'Magenta', brightness: 'Soft' },
{ color: 'Blue', brightness: 'Principal' },
{ color: 'Magenta', brightness: 'Principal' } ]
`
` [ 'Blue', 'Magenta' ]
[ { color: 'Magenta', brightness: 'Medium' },
{ color: 'Magenta', brightness: 'Soft' },
{ color: 'Magenta', brightness: 'Principal' },
{ color: 'Blue', brightness: 'Medium' },
{ color: 'Blue', brightness: 'Soft' },
{ color: 'Blue', brightness: 'Principal' } ]
情况一团糟，顺序与数组中的顺序不一样：颜色被反转，亮度值也被反转。然后，我认为两次（或更多次）调用此函数会产生问题。有办法解决吗？存在一种明智的方式来做我需要的事情？
您可以将所需顺序与逻辑OR||和索引的增量相链接。
const
palette = [{ color: 'Blue', brightness: 'Soft' }, { color: 'Blue', brightness: 'Medium' }, { color: 'Blue', brightness: 'Principal' }, { color: 'Magenta', brightness: 'Soft' }, { color: 'Magenta', brightness: 'Medium' }, { color: 'Magenta', brightness: 'Principal' }],
colorOrder = ['Blue', 'Magenta'],
brightnessOrder = ['Principal', 'Soft', 'Medium'];
palette.sort((a, b) =>
colorOrder.indexOf(a.color) - colorOrder.indexOf(b.color) ||
brightnessOrder.indexOf(a.brightness) - brightnessOrder.indexOf(b.brightness)
);
console.log(palette);.as-console-wrapper { max-height: 100% !important; top: 0; }一种使用功能和给定顺序数组对副本进行排序的方法。
function sortArrayByAnotherArrays(data, orders) {
const
getObject = array => array.reduce((r, k, i) => (r[k] = i + 1, r), {}),
objects = orders.map(([k, a]) => [k, getObject(a)]);
return data
.slice()
.sort((a, b) => {
var v;
objects.some(([k, o]) => v = o[a[k]] - o[b[k]]);
return v;
});
}
const
palette = [{ color: 'Blue', brightness: 'Soft' }, { color: 'Blue', brightness: 'Medium' }, { color: 'Blue', brightness: 'Principal' }, { color: 'Magenta', brightness: 'Soft' }, { color: 'Magenta', brightness: 'Medium' }, { color: 'Magenta', brightness: 'Principal' }],
colorOrder = ['Blue', 'Magenta'],
brightnessOrder = ['Principal', 'Soft', 'Medium'],
ordered = sortArrayByAnotherArrays(
palette,
[
['color', colorOrder], // [key, values in order]
['brightness', brightnessOrder]
]
);
console.log(ordered);.as-console-wrapper { max-height: 100% !important; top: 0; }本文收集自互联网，转载请注明来源。
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