Function toggleClass

src/utils.js:73–83

(el, name, state)

const R_SPACE = /\s+/g;

function toggleClass(el, name, state) {
	if (el && name) {
		if (el.classList) {
			el.classList[state ? 'add' : 'remove'](name);
		}
		else {
			let className = (' ' + el.className + ' ').replace(R_SPACE, ' ').replace(' ' + name + ' ', ' ');
			el.className = (className + (state ? ' ' + name : '')).replace(R_SPACE, ' ');
		}
	}
}


function css(el, prop, val) {