JavaScript 개체 키를 알파벳순으로 정렬하는 방법: 단계별 가이드

<code class="javascript">function sortObject(o) {
    var sorted = {},
        key, a = [];

    for (key in o) {
        if (o.hasOwnProperty(key)) {
            a.push(key);
        }
    }

    a.sort();

    for (key = 0; key < a.length; key++) {
        sorted[a[key]] = o[a[key]];
    }

    return sorted;
}</code>

<code class="javascript">var unsortedObject = {
    method: 'artist.getInfo',
    artist: 'Green Day',
    format: 'json',
    api_key: 'fa3af76b9396d0091c9c41ebe3c63716'
};</code>

<code class="javascript">var sortedObject = {
    api_key: 'fa3af76b9396d0091c9c41ebe3c63716',
    artist: 'Green Day',
    format: 'json',
    method: 'artist.getInfo'
};</code>