Букмарклет для подсчёта выплат за месяц на AppsCentrum (несжатый код)

apps-centrum-sum.js

/**
 * Bookmarklet for my.appscentrum.com 
 * to display agregated payouts by month
 * for the last 3 months.
 *
 * Minify with command:
 *
 * uglifyjs -m -c negate-iife=false apps-centrum-sum.js 
 *
 * by Sergei Sokolov hello@sergeisokolov.com
 * Moscow, February 2017.
 */
(function(n){
	var tbl = $('table')
		,sums = {}
		,d = new Date
		,m
		,y
		,i
		,out = ''
	;

	// are we on a relevant page?
	if( window.location.hostname != 'my.appscentrum.com' || tbl.length < 4) return;
	
	// get dates
	d.setDate(1);
	for(i=0; i<n; i++) {
		m = ('0' + (parseInt(d.getMonth())+1)).substr(-2)
		y = '' + d.getFullYear()
		sums[''+m+'.'+y] = 0;

		d.setMonth(d.getMonth() - 1);
	}

	tbl = tbl[3];
	$('tr',tbl).each( function(i,tr) {
		var s, key, dt = $('td:nth-child(5)', this).text().split(/[\ \.]/);
		if( dt.length >= 2) {
			key = '' + dt[1] + '.' + dt[2];
			if( sums.hasOwnProperty(key)) {
				s = $('td:nth-child(3)', this).text();
				if( (s = s.replace( /[^0-9\.]+/g, '')).length) {
					sums[key] += parseFloat(s);
				}
			}
		}
	});
	
	for(key in sums) {
		out += '' + Math.round(100*sums[key])/100 + ' руб. за ' + key + "\r\n";
	}
	alert( out);
	return void(0);
})(5)

Минифицированная версия тут.