Question

我试图让var dir= director引用属性"director":"Jean Rouch and Edgar Morin.",我该怎么做？我是Javascript的新手，请原谅我，如果我没有使用正确的条款。

 var myFavoriteDocumentary = {
    "name": "Chronicle of a Summer.",
        "reldate": "1961.",
        "language": "French.",
        "director": "Jean Rouch and Edgar Morin.",
        "getFavFilm": function () {
        return "My favorite non-fiction film is:" + "\n" + this.name + "\n" + "Directed by:" + "\n" + this.director + "\n" + "Year of film:" + "\n" + this.reldate + "\n" + "Language:" + "\n" + this.language;
    }
}
console.log(myFavoriteDocumentary.name);
console.log(myFavoriteDocumentary.getFavFilm());

var dir= "director"

        function dirFake(dir) {
            console.log("The directors are: " + dir);
            dir = "Vertov";
            console.log( dir + " is not the director" );
        }
        dirFake(dir);
        console.log( dir + " are the true directors!" );

Answer 1

您可以使用与控制台名称相同的步骤。

var dir=myFavoriteDocumentary.director;

Answer 2

如果你问我认为你在问什么，只需使用javascripts括号或点符号作为对象。

myFavoriteDocumentary.directory;
myFavoriteDocumentary["directory"];

Answer 3

    var myFavoriteDocumentary = {
    "name": "Chronicle of a Summer.",
        "reldate": "1961.",
        "language": "French.",
        "director": "Jean Rouch and Edgar Morin.",
        "getFavFilm": function () {
        return "My favorite non-fiction film is:" + "\n" + this.name + "\n" + "Directed by:" + "\n" + this.director + "\n" + "Year of film:" + "\n" + this.reldate + "\n" + "Language:" + "\n" + this.language;
    }
}

console.log(myFavoriteDocumentary.name);
console.log(myFavoriteDocumentary.getFavFilm());

var dir = myFavoriteDocumentary.director;

    function dirFake(dir) {
        console.log("The directors are: " + dir);
        dir = "Vertov";
        console.log( dir + " is not the director" );
    }
    dirFake(dir);
    console.log( dir + " are the true directors!" );

抱歉日志显示以下结果的格式：

一个夏天的纪事。 VM178：11 我最喜欢的非小说类电影是：一个夏天的纪事。导演是： Jean Rouch和Edgar Morin。电影年份： 1961年。语言：法语。 VM178：12 董事是：Jean Rouch和Edgar Morin。 VM178：17 Vertov不是导演VM178：19 Jean Rouch和Edgar Morin。是真正的导演！希望能回答你的问题。

如何使用对象的属性作为变量？

3 个答案: