asken.jpのPC画面で体重データを取得する

get_weights_from_asken.js

const range = (n) => [...Array(n).keys()];
const pad = (n) => ('0' + n).slice(-2);

$ = $J; // asken.jpのjQuery
var begin = 2015; // 開始年
var end = 2020; // 終了年
var timer = null;
var final = () => {
    // 最終出力
    console.log(JSON.stringify(result.flat()));
};
var result = [];

range(end - begin + 1)
    .map(i => [(i + begin), range(12)])
    .map(a => a[1].map(i => [a[0] + "", pad(i+1)]))
    .flat()
    .forEach((item, idx) => {
        setTimeout(() => {
            // 改ページ
            $.post(`/my_diary/view_calendar/${item[0]}/${item[1]}/1/0/`).then(data => {
                $('#hm_p_calendar').html(data);
                var ym = $.trim($('#calendar_title').text()).replace(/[年月]/g,'');
                var y = ym.substring(0,4), m = pad(ym.substring(4));
                var ret = $('#calendar_datas > div[class*=calendar_body]')
                    .map((i, e) => {
                        var date = parseInt($.trim($(e).find('.val_date').text()));
                        var ymd = `${y}-${m}-${pad(date)}`;
                        var weight = parseFloat($.trim($(e).find('.val_weight').text()));
                        if (item[0] != y || item[1] != m || !weight) {
                            return null;
                        }
                        return { 'date': ymd, 'weight': weight };
                    }).toArray();
                if (0 < ret.length) {
                    result.push(ret);
                }
                console.log(item[0] + '-' + item[1], ret.length);
            
                if (timer) {
                    clearTimeout(timer);
                }
                timer = setTimeout(final, 1000);
            });
            
        }, idx * 300);
    });