Question

我需要一个循环遍历对象数组的代码，检查键和值是否与单独对象中的键匹配，然后在新数组中推送包含所有键和值的对象，因此对于特定情况：

var arr = [{name: 'john', lastname: 'roberts', children: 3},
           {name: 'john', lastname: 'green', children: null}, 
           {name: 'steve', lastname: 'baker', children: 3}];

var obj = {name: 'john', children: 3};

结果将是：

arr2 = [{name: 'john', lastname: 'roberts', children: 3}];

Answer 1

扩展@Psidom版本

＆＃13;

var arr = [{name: 'john', lastname: 'roberts', children: 3},
           {name: 'john', lastname: 'green', children: null}, 
           {name: 'steve', lastname: 'baker', children: 3}];

var obj = {name: 'john', children: 3};

console.log(
  arr.filter(x => Object.keys(obj).every( k => x[k] == obj[k]))
);

＆＃13;

Answer 2

在数组上使用filter：

var arr = [{name: 'john', lastname: 'roberts', children: 3},
           {name: 'john', lastname: 'green', children: null}, 
           {name: 'steve', lastname: 'baker', children: 3}];

var obj = {name: 'john', children: 3};

console.log(
  arr.filter(x => x.name === obj.name && x.children === obj.children)
);

如何在对象数组中查找一个对象的所有匹配键和值？

2 个答案: