[英]Filter against an array condition
假设我有一个userIds数组
const userIds = ['1234', '3212', '1122']
然后我有一个对象数组
const arrayOfObjects = [
{
_source: {itemId: ['1234'] }
},
{
_source: {itemId: ['3212'] }
},
{
_source: {itemId: ['1111'] }
}
]
我想通过将id与userIds数组匹配来过滤对象数组
arrayOfObjects.filter(item => item._source.itemId === "what goes here?")
尝试这个
arrayOfObjects.filter(item => userIds.includes(item._source.itemId[0]))
Internet Explorer不支持Array.prototype.includes
。 如果需要跨浏览器解决方案,则可以使用Array.prototype.filter
和Array.prototype.indexOf
方法:
const userIds = ['1234', '3212', '1122']; const arrayOfObjects = [{ _source: { itemId: ['1234'] } }, { _source: { itemId: ['3212'] } }, { _source: { itemId: ['1111'] } } ]; const filtered = arrayOfObjects.filter(o => userIds.indexOf(o['_source'].itemId[0]) > -1); console.log(filtered)
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