javascript - 从 Javascript 对象数组中删除所选项目

Question

我有一个对象数组，我必须从中删除选定的对象并创建新的对象数组。

//Get all items from 'Product' dropdown
var allItems = [{ text: "India", value: "10" }, { text: "Canada", value: "12" }, { text: "US", value: "17" }, { text: "Austria", value: "18" }, { text: "South Africa", value: "14" }];

var itemsToRemove = ["17", "10"];

var newItems = [{ text: "Canada", value: "12" }, { text: "Austria", value: "18" }, { text: "South Africa", value: "14" }];

Answer 1

使用Array.prototype.filter :

var newItems = allItems.filter(function(e) {
    // A.indexOf(x) == -1 if x is not found in A
    return itemsToRemove.indexOf(e.value) === -1;
});

var allItems = [
  { text: "India", value: "10" },
  { text: "Canada", value: "12" },
  { text: "US", value: "17" },
  { text: "Austria", value: "18" },
  { text: "South Africa", value: "14" }
];

var itemsToRemove = ["17", "10"];

var newItems = allItems.filter(function(e) {
    return itemsToRemove.indexOf(e.value) === -1;
});

console.log( newItems );