数组取值问题

var links = [
    { name: "1", url: "#" },
    { name: "2 ", url: "#" },
    { name: "3", url: "#" },
    { name: "4", url: "#" },
    { name: "5", url: "#" }
];

这么一个数组，我用了两层for in才取到里面的值

能否用map取到里面的name和url值呢

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for (var i in links) {
  console.log('name:' + links[i].name, 'url:' + links[i].url)
}

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为什么用两层for in？一层完全够了。

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links.map(function(link){
    console.log(link.name,link.url)
})