<div class="add_block">
<input class="click_to_add_block" type="button" value="Добавить блок">
</div>$('.click_to_add_block').click(function() {
$(this).before(`
<div class="block_to_add">
<div class="topic">
<input type="text" placeholder="Тема">
</div>
<div class="description">
<textarea placeholder="Текст"></textarea>
</div>
<button class="delete">удалить</button>
</div>`);
});
$(document).on('click', '.delete', function() {
$(this).parent().remove();
});shouldComponentUpdate(nextProps, nextState) {
return !this.state.updatesLocked;
}