Layim in javascript to find friends and groups

/** html code*/
<textarea title="User Template" id="LAY_Friend" style="display:none;">
	{{# layui.each(d.data, function(index, item){ }}
		<div class="layui-col-sm4 layui-col-md4 layui-col-lg2">
	 <div class="layui-card" >
	 	<div class="avatar">
	 		<img class="layadmin-homepage-pad-img" src="{{ item.avatar }}" />
	 	</div>
	 	<div class="units">
		 	<p>{{ item.userName }}({{ item.userCode }})</p>
		 	<p>{{ item.roleNames }}</p>
		 	<p>
			 	{{# if(item.isValid == 0){ }}
			 		<button userId="{{ item.userId }}" class="addFriend layui-btn layui-btn-xs" style="background-color:#7ADDD4;">&nbsp;&nbsp;<strong>+</strong>&nbsp;&nbsp;Friends&nbsp;&nbsp;</button>
			 	{{# } else { }}
			 		<span class="c_red">Already friends</span>
			 	{{# } }}
		 	</p>
	 	</div>
	 </div>
 	</div>
 	{{# }); }}
</textarea>

/** js code */
$.ajax({
 type: "get",
 url: "../json/friend.json",
 async: true,
 data: data,
 success: function (data) {
 	var json = data;
 	var list = json.data;
 	if(list != null){
 		// Data converted to HTML format var html = laytpl(LAY_Friend.value).render({
			 data: list
			});
			control.html(html);
 	}else{
 		control.append('<div style="color:#ccc; margin:150px 350px;">No users matching the search criteria were found</div>');
 	}
 }
});

/**
 * Add friends */
$(document).on('click', '.addFriend', function() {
	var myBut = $(this);
	var userId = myBut.attr("userId");
	// Pop up the add friend verification interface layim.add({
		type: 'friend'
 ,username: user.username
 ,avatar: user.avatar
 ,submit: function(group, remark, index){
			layer.msg('Friend request has been sent, please wait for the other party to confirm', { icon: 1 });
			// Modify button myBut.parent().html('<span class="c_red">Application has been submitted</span>');
		 	// Insert your push information code here} 
 });
});

// Push a message var msg = {
		type: "addMsgbox", // Defined casually, used to distinguish message types on the server side sendType: 1, // Defined casually, used to distinguish message types on the server side fromId: loginUserId, // Applicant toId: user.id, // Friend ID groupId: group, // Group remark: remark // Verification information }
websocket.send(JSON.stringify({
 	type: 'chatMsgbox' // Just define it, used to distinguish message types on the server side, data: msg
 }));