javascript - 在JavaScript中返回多个值？(Return multiple values in JavaScript?)

Question

I am trying to return two values in JavaScript.(我试图在JavaScript中返回两个值。)

Is that possible?(那可能吗？)

var newCodes = function() {  
    var dCodes = fg.codecsCodes.rs;
    var dCodes2 = fg.codecsCodes2.rs;
    return dCodes, dCodes2;
};

  ask by Autolycus translate from so

Answer 1

No, but you could return an array containing your values:(不，但是您可以返回一个包含您的值的数组：)

function getValues() {
    return [getFirstValue(), getSecondValue()];
}

Then you can access them like so:(然后，您可以像这样访问它们：)

var values = getValues();
var first = values[0];
var second = values[1];

With the latest ECMAScript 6 syntax *, you can also destructure the return value more intuitively:(使用最新的ECMAScript 6语法 *，您还可以更直观地分解返回值：)

const [first, second] = getValues();

If you want to put "labels" on each of the returned values (easier to maintain), you can return an object:(如果要将“标签”放在每个返回值上（便于维护），则可以返回一个对象：)

function getValues() {
    return {
        first: getFirstValue(),
        second: getSecondValue(),
    };
}

And to access them:(并访问它们：)

var values = getValues();
var first = values.first;
var second = values.second;

Or with ES6 syntax:(或使用ES6语法：)

const {first, second} = getValues();

^{* See this table for browser compatibility.}(^{*有关浏览器兼容性，请参见下表 。})

^{Basically, all modern browsers aside from IE support this syntax, but you can compile ES6 code down to IE-compatible JavaScript at build time with tools like Babel .}(^{基本上，除IE之外，所有现代浏览器都支持此语法，但是您可以在构建时使用Babel之类的工具将ES6代码编译为IE兼容的JavaScript。})