在JavaScript中,可以使用一些方法来过滤对象子数组和对象子数组。下面是一些常用的方法:
const data = [
{ id: 1, name: 'John', hobbies: ['reading', 'coding'] },
{ id: 2, name: 'Jane', hobbies: ['swimming', 'painting'] },
{ id: 3, name: 'Bob', hobbies: ['coding', 'gaming'] }
];
const filteredData = data.filter(obj => obj.hobbies.includes('coding'));
console.log(filteredData);
输出结果为:
[
{ id: 1, name: 'John', hobbies: ['reading', 'coding'] },
{ id: 3, name: 'Bob', hobbies: ['coding', 'gaming'] }
]
const data = [
{ id: 1, name: 'John', hobbies: ['reading', 'coding'] },
{ id: 2, name: 'Jane', hobbies: ['swimming', 'painting'] },
{ id: 3, name: 'Bob', hobbies: ['coding', 'gaming'] }
];
const filteredData = data.map(obj => ({
...obj,
hobbies: obj.hobbies.filter(hobby => hobby !== 'coding')
}));
console.log(filteredData);
输出结果为:
[
{ id: 1, name: 'John', hobbies: ['reading'] },
{ id: 2, name: 'Jane', hobbies: ['swimming', 'painting'] },
{ id: 3, name: 'Bob', hobbies: ['gaming'] }
]
const data = [
{ id: 1, name: 'John', hobbies: ['reading', 'coding'] },
{ id: 2, name: 'Jane', hobbies: ['swimming', 'painting'] },
{ id: 3, name: 'Bob', hobbies: ['coding', 'gaming'] }
];
const filteredData = data.reduce((acc, obj) => {
const filteredHobbies = obj.hobbies.filter(hobby => hobby !== 'coding');
if (filteredHobbies.length > 0) {
acc.push({ ...obj, hobbies: filteredHobbies });
}
return acc;
}, []);
console.log(filteredData);
输出结果为:
[
{ id: 1, name: 'John', hobbies: ['reading'] },
{ id: 2, name: 'Jane', hobbies: ['swimming', 'painting'] },
{ id: 3, name: 'Bob', hobbies: ['gaming'] }
]
这些方法可以根据具体的需求来过滤对象子数组和对象子数组中的元素。在实际应用中,可以根据业务逻辑选择合适的方法来实现过滤功能。
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