function solve() {
	var domElement = (function () {
		function isValidateString(param) {
			var regex = /^[a-z0-9]+$/gi;

			if (typeof (param) !== 'string') {
				return false;
			}
			return regex.test(param);
		}
		var domElement = {

			init: function(type) {
				this.type = type;
			},
			appendChild: function(child) {

			},
			addAttribute: function(name, value) {

			},


        get innerHTML(){
        },
	    get type(){
		  return this._type;
		},
		set(value){
			if (!isValidateString(value)) {
				throw new Error();
			}
			this._type = value;
		}
		};
		return domElement;
	} ());

	return domElement;
}

module.exports = solve;