In vue.js use timeago format

Hello,
In vue.js(2.5) I want to output some properties comma separated, like:

&nbsp;( {{participantUser.first_name}} {{participantUser.last_name}}, {{participantUser.user_status_label}}, {{participantUser.user_status_label}} )<br>

Code (markup):

But as some of the values can be empty, I would like to skip empty comma in resulting string, so I need some routine to deal with empty fields.

The usual way for this can be to set all parameters in

<div v-if="users_list_block_visible && participantUsersList.length > 0" >
...
{{ participantUserInfo(participantUser) }}
...
</div>


methods: {

participantUserInfo(user) {
var dataArray = [ " ", user['first_name']+' '+user['last_name'], user['user_status_label'], user['visited_at'] ]
return this.concatStrings(dataArray, ', '); // that is my function for concatinating - ok with it
...

Code (markup):

The question is that I need field visited_at to show in Since format, using this https://github.com/egoist/vue-timeago library

When I need to show time of message creation, I do

<timeago :since="nextUserChatMessage.created_at" :auto-update="60"></timeago>

Code (markup):

But as field visited_at can be empty, I aslo need to include it it dataArray array for concatStrings.
If there is a way to call timeago functionality for visited_at in javascript participantUserInfo function or to make it in some other way?

I thought about computed methods, but is it this case? computed methods seems do not have parameters....

I hope I put it clearly....

Thanks!

 

First, you're using an object, the names don't violate JS property/method namespace, just use the object method.

Second, and I rarely say this... this is a job for hardcoding. ASSUMING the name always exists:

participantUserInfo(user) {
	var result = user.first_name + ' ' + user.last_name;
	if (user.user_status_label) result += ', ' + user.user_status_label;
	if (user.visited_at) result += ', ' + user.visited_at;
	return result;
}

Code (markup):

Sometimes automation will only take you so far.

Now, that said, IF I were to automate it by making an array, I'd suggest using join instead of concatStrings.