[英]Filter array of objects by array of objects [TypeScript] [ES6]
How to filter array of objects by array of objects with conditions. 如何通过带有条件的对象数组过滤对象数组。
Interfaces: 接口:
interface Person {
age: number;
available: boolean;
}
interface PersonFilter {
predicateFn(arg: Person): boolean;
}
Data: 数据:
const persons = [
{
"age": 2,
"available": false
},
{
"age": 5,
"available": true
}
];
Conditions to filter: 过滤条件:
const filters = [
{predicateFn: person => person.available},
{predicateFn: people => person.age > 2}
];
How to filter this array of objects using current filters structure ? 如何使用当前过滤器结构过滤此对象数组?
function getFilteredPersons(filters): Person[]{
return persons.filter( ?? );
}
Expected output: 预期产量:
[
{
"age": 5,
"available": true
}
]
You can try it with the Array.prototype.every
function, it would be something like: 您可以使用
Array.prototype.every
函数来尝试它,就像这样:
const persons = [{ age: 2, available: false }, { age: 5, available: true } ]; const filters = [{ predicateFn: person => person.available }, { predicateFn: person => person.age > 2 } ]; function getFilteredPersons(filters) { return persons.filter(p => filters.every(filter => filter.predicateFn(p))); } console.log(getFilteredPersons(filters));
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