import addClass from 'class-acts/add';
import removeClass from 'class-acts/remove';
import toggleClass from 'class-acts/toggle';
import containsClass from 'class-acts/contains';

[].slice.call(document.querySelector('p.class1'))
	.map( removeClass('class1') )
	.map( addClass('class2') )
	.map( toggleClass('class3') )
	.filter( containsClass('class4') );

import classActs from 'class-acts';

// classActs looks like: { add, remove, toggle, contains }

[].slice.call( document.querySelector('p.class1') )
	.map( classActs.toggle('class1') );