User:Shizhao/Subcategories.js

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$(function (){
	if (mw.config.get("wgNamespaceNumber") != 14 ) {
		return;
	}
	var subcategories_button = mw.html.element( 'span', {class:"mw-ui-button mw-ui-progressive", id:"subcategories_button"}, new mw.html.Raw("子分类"));
	$("#mw-subcategories h2").append(`<small>${subcategories_button}</small>`);
	$(document).on('click','span#subcategories_button',function(e){
		e.preventDefault();
		$('.CategoryTreeToggle').trigger('click');
	});

});