如何转换字符串并将其作为对象调用

Question

我有以下几个元素的插件：

$.fn.greenify = function( options ) {

    // This is the easiest way to have default options.
    var settings = $.extend({
        amazon: "",
        download: "some text",
        purchase: "",
        apple: ""
    }, options );
};

通常我通过settings.item 调用元素，例如settings.amazon。我只想循环遍历元素并检查它们是否有价值，如果是//do something。 我写了以下代码：

let ds = ["download", "purchase", "amazon"]

$.each(ds, function (index, value) {
    console.log($(settings)[0] + value);
});

使用上面的代码，我想检查 settings.download 并显示它的价值。但$(settings)[0] + value 不会被settings.download 或settings.amazon 替换。所以它不会把它当作一个调用。

知道如何根据ds 数组遍历元素并显示每个元素的值吗？

Answer 1

试试这个方法

let settings;

$.fn.greenify = function( options ) {
       // This is the easiest way to have default options.
       settings = $.extend({
        amazon: "",
       download: "some text",
        purchase: "",
        apple: ""
    }, options );
};

let ds = ["download", "purchase", "amazon"];

ds.forEach(value => {
    console.log(settings[value]);
});