Interpretation and explanation of register sidebar
First off, register_sidebar() is used to add a widget area, an area where you can add widgets to. And in short, esc_html__() retrieves and escapes the translation of a text, whereas those %1$s and %2$s are placeholders which will be replaced with the widget ID and class name, respectively. More details on esc_html__() esc_html__() does … Read more