我有一個物件陣列，我想將它的一些元素復制到另一個陣列中，我該怎么做？
比方說：
original = [{name: "a", age: 20},
{name: "b", age: 25},
{name: "c", age: 30}
];
var k = 0;
for(var i = 0; i < original.lenght; i )
if(original[i].age > 22){
selected[k] = original[i]; ===> needs to change.
k ;
}
編輯：
我需要被選為：
selected = [{name: "b", age: 25},
{name: "c", age: 30}
];
uj5u.com熱心網友回復：
您可以使用過濾器創建一個新陣列，其中包含與您的 if 陳述句匹配的任何內容。
let original = [{name: "a", age: 20},
{name: "b", age: 25},
{name: "c", age: 30}
];
let min_age = 23;
let selected2 = original.filter((element) => element.age > min_age);
console.log(selected2)let original = [{
name: "a",
age: 20
},
{
name: "b",
age: 25
},
{
name: "c",
age: 30
}
];
let min_age = 23;
let selected = [];
original.forEach(function(e) {
if (e.age > min_age) {
selected.push(e)
}
});
console.log(selected)uj5u.com熱心網友回復：
您可以只使用過濾器：https ://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter 。
const selected = original.filter(person => person.age > 22)
uj5u.com熱心網友回復：
其他答案都很棒！這是對它們的重構 TBH
let original = [{
name: "a",
age: 20
},
{
name: "b",
age: 25
},
{
name: "c",
age: 30
}
];
let selected = [];
original.filter( p => p.age > 22).forEach( p => selected.push(p) );轉載請註明出處，本文鏈接：https://www.uj5u.com/caozuo/504512.html
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