const array1 = [
{currency: 'CNY', value: 1 },
{currency: 'USD', value: 2 }
]
const array2 = [
{currency: 'CNY', value: 332 },
{currency: 'USD', value: 424 },
{currency: 'HK', value: 123 }
]
数组array1
和 array2
,现在需要根据array1
子元素的currency
字段,删除array2
中多余的子元素,
即得到
const array2 = [
{currency: 'CNY', value: 332 },
{currency: 'USD', value: 424 }
]
怎么写啊,,想了好久都没实现~~~!!!!