比较字符串数组和具有字符串属性的数组对象的最佳方法? [英] Best way to compare an array of strings to an array objects with string properties?

问题描述

我有一个对象数组，在这些对象中是一个name属性.

I have an array of object, within those objects is a name property.

const objArr = [ { name: "Avram" }, { name: "Andy" } ];

我正在从包含名称的外部来源中收集字符串数组.

I’m collecting an array of strings from an outside source containing names.

const strArr = [ "Avram", "Andy", "Brandon" ];

如果strArr包含在objArr中的对象上作为属性name不存在的字符串，我需要创建一个新对象并将其推送到objArr.

If strArr contains a string that does not exist as a property name on an object in objArr, I need to create a new object and push it to objArr.

例如:objArr.push( { name: "Brandon" } );

很显然，我可以使用嵌套循环，但如果可能的话，我想避免这种情况.以编程方式执行此操作的最佳方法是什么?

Obviously, I can use nested loops, but I’d like to avoid that if possible. What is the best way to do this programmatically?

推荐答案

const objArr = [ { name: "Avram" }, { name: "Andy" } ];
const strArr = [ "Avram",  "Andy",  "Brandon" ];

const objNamesArr = objArr.map((obj) => obj.name)

strArr.forEach((ele) => objNamesArr.indexOf(ele) == -1 && objArr.push({name:ele}))
console.log('objArr', objArr);
console.log('strArr', strArr);

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