Method setAttributeNS

src/undom.js:123–127

(ns, name, value)

		}

		setAttributeNS(ns, name, value) {
			let attr = findWhere(this.attributes, createAttributeFilter(ns, name));
			if (!attr) this.attributes.push(attr = { ns, name });
			attr.value = String(value);
		}
		getAttributeNS(ns, name) {
			let attr = findWhere(this.attributes, createAttributeFilter(ns, name));
			return attr && attr.value;