Checking DRY, KISS, and YAGNI rules.

[ibugithub]

Instead of appending all the elements one by one, I could use forEach to append them by less using less code.

todo_list/src/eventHandler.js

Lines 43 to 50 in ded17d7

	this.todoListContainer.appendChild(tdulLi);
	tdulLi.appendChild(tdLeft);
	tdLeft.appendChild(tdulLiBox);
	tdLeft.appendChild(tdLiContent);
	tdulLi.appendChild(tdLiOption);
	tdulLiBox.appendChild(tdBoxImg);
	tdulLi.appendChild(tdLiOption);
	tdLiOption.appendChild(tdOptionImg);