Question

我有一个如下对象 -

var product = [{name:"laptop", price:"10000", avail:true},
{name:"keyboard", price:"500", avail: true},
{name:"bt mouse", price:"999", avail: false}];

这需要克隆到另一个具有有限属性的对象。

预期产量

onlyProduct = [{name:"laptop",avail:true},
    {name:"keyboard",avail:true},
    {name:"bt mouse",avail:false}];

我尝试使用extend克隆，但它提供了一个真正的副本

var onlyProduct = $.extend(true,{},product)

Answer 1

此要求主要要求采用不同的方法：

var onlyProduct = []

// Loop through the main product array
$.each(product, function (i, n) {

    // Push the required properties in the new onlyProduct array
    onlyProduct.push({
        name: n.name,
        avail: n.avail
    });
});

// View the new array in browser console
console.log(onlyProduct);

Answer 2

var newProduct = [];
for (i in product){
    newProduct[i] = {};
    for (j in product[i]){
        if(j != 'price'){
            newProduct[i][j] = product[i][j];
        }
    }
}

DEMO JSFIDDLE检入控制台

Answer 3

您也可以使用delete

var product = [{name:"laptop", price:"10000", avail:true},
{name:"keyboard", price:"500", avail: true},
{name:"bt mouse", price:"999", avail: false}];

var backup = product;

for (counter = 0; counter <product.length; counter++) {
  delete product[counter]['price'];
}

console.log(product);

在jquery中克隆具有有限子对象的对象

3 个答案: