CODEWITHSUNDEEP
meteor
Daltron
Daltron

Reputation: 1866

MeteorJS: reactiveDict VS Session?

So, I might be missing something, but everyone says ReactiveDict is better than Session when storing instance values. But, what about hashing? It doesn't seem as though reactiveDict can hide data like storing in the Session? I am able to get the data from the app through the console using reactiveDict... so, if I wanted to hide this instance data, wouldn't it make sense to use Session?

Thoughts?

appState = new ReactiveDict('appState')...;
Session.set(key, value)...

Upvotes: 0

Views: 168

Answers (1)

Sasikanth
Sasikanth

Reputation: 3043

If you can see the source code for session package here https://github.com/meteor/meteor/blob/devel/packages/session/session.js

Session = new ReactiveDict('session');

Session is nothing but a ReactiveDict.

Reason why people say ReactiveDict is better than session is, Session is global, you can go to console and type Session.keys to get all the values.

Where as ReactiveDict has option to not make it global

if you want to use ReactiveDict in single file you can use like below

const appState = new ReactiveDict('appState')
.
.
.

appState.set('key', 'value');
.
.
.
appState.get('key');

here appState is not global.

If you want to use same across different files, you can use import and export like below

set.js
------

const appState = new ReactiveDict('appState')
appState.set('key', 'value');
.
.
.
export default appState

then

get.js
------

import appState from './set.js';

appState.get('key'); //result will be value'

So the advantage reactivedict has over session is, session is global where as reactivedict can be not global.

Upvotes: 3

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