如何映射对象？

Question

例如，我们可以像这样映射一个数组：

IMGOINGTOBENUMBERS = ["1", "5", "19"];

IM_HAPPY = IMGOINGTOBENUMBERS.map(function(value){
        return +value;
});

console.log(IM_HAPPY);

关于jsfiddle：http://jsfiddle.net/87npme9e/1/

但是，常规JS对象呢？我们知道.map仅适用于数组。

对象：

IMGOINGTOBENUMBERS = {
    a: "1",
    b: "2"
}

NOT_HAPPY = IMGOINGTOBENUMBERS.map(function(value){
        return +value;
});

console.log(NOT_HAPPY);

关于jsfiddle：http://jsfiddle.net/uyzqtpLd/2/

Answer 1

IMGOINGTOBENUMBERS = {
    a: "1",
    b: "2"
}



NOT_HAPPY =  Object.keys(IMGOINGTOBENUMBERS).map(function (key) {return IMGOINGTOBENUMBERS[key]});

console.log(NOT_HAPPY);