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FabricJS object functions dont work after loadFromJSON

I'm saving my canvas in JSON, and storing it in firestore.
jsonResponse.fabricInfos = this.canvas.toDatalessJSON([some properties]);
I already tried with toJSON too
The save works, and on load it loads everything right on the screen, but all the functions I try to use on the objects give an error.
Exemple:
object.set({opacity: 1});
I will always receive: set is not a function...

How to save the last state of sliders after page reload

I have this network visualized using d3 and angular. Here is the link to the visualization.
I wanted to save the last state of the network so that even if I refresh the page it will show the last state. But don't know how to do that.
I read that it can be done using sessionStorage or localStorage but I can't seem to figure it out for my visualization.
I tried this by setting my JSON data to the sessionStorage and then getting it:
if (sessionStorage) {
sessionStorage.setItem("myKey", myJSON.toString());
}
if (sessionStorage) {
sessionStorage.getItem("myKey"); // {"myKey": "some value"}
}
and I also tried it like this:
localStorage.setItem("networkGraph", networkGraph);
var networkGraph = localStorage.getItem("networkGraph");
but it's not working. Is this the right way to do it?
Any help will be highly appreciated!

Are you sure that you need sessionStorage and not localStorage? In the case of sessionStorage saved data will be deleted when a browser tab with your app becomes closed.
You can write localStorage.setItem('inputLayerHeight', vm.inputLayerHeight); in your onChange handler to remember inputLayerHeight and Number.parseInt(localStorage.getItem('inputLayerHeight')) || 15 to restore the inputLayerHeight at value property of vm.inputLayerHeightSlider object. The same approach can be used for the other values to keep.

Your attempt is almost right. The only thing you need to change is the usage of localStorage. Simply add window or $window (more 'angulary' way to access window variable) variable like so:
$window.localStorage.setItem("networkGraph", JSON.stringify(networkGraph));
Also, I recommend using angular-storage if you're looking for an easy way to work with local storage. It makes things less painful :)

I think the problem might be related to the way you are storing data on your local storage. You are saving data as a string however I think that d3 doesn't recognize strings as valid data options. So instead you should do something like this:
if (sessionStorage) {
// Parse the data to a JavaScript Object
const data = JSON.parse(sessionStorage.getItem("myKey"));
} else {
// Fetch data...
// Set sessionStorage or localStorage
sessionStorage.setItem("myKey", myJSON.toString());
}
You can rearrange the logic as it might suit you but the idea is that in the end you should use JSON.parse() when getting the data from storage.

Sequelize - setting property of an instance does nothing?

I've used the standard instance syntax before without issue, but in this part of my code I can't seem to update an instance I've fetched from the database.
...
const instance = await db.models.Users.findOne({where: {profileName: foundChange.profileName}});
instance.profileName = webUser.username;
await instance.save()
console.log(`Profilename: ${instance.profileName}`);
Console returns the value it was before setting.
I've also tried instance.set(key, value) which similarly has no effects. Am I missing something?
I've found that directly addressing instance.dataValues will change it, but that seems to go against the Sequelize documentation. Will this way update properly?

I think it's because I'm trying to update the primary key actually! Probably a sign I should do some remodelling...

Setting a new property to PFObject

I have a Parse.com cloud function that sends back a PFObject. In some cases I need to send back values for keys that don't exist in the PFObject. Is that possible?
This is what I tried:
var test = prodAndTitles["products"][0];
test["XOXO"] = "kisses";
prodAndTitles["products"][0] = test;
console.log("XOXO = " + prodAndTitles["products"][0]["XOXO"]);
This prints out kisses as expected.
But back in the app when I try to get the XOXO key it's not there:
NSLog(#"The product's XOXO %#", [self.product objectForKey:#"XOXO"]);
This prints out null.
I also tried changing the product type from PFObject to id, but it doesn't help.
Is there a solution, without going into the datastore class and creating dummy columns?

Here's a complete answer to the problem I faced:
The issue is that none of the notations above works for the Parse.com backbone javascript objects that come from the datastore. This is the notation that does work:
testObject.set('TestProp', 'TestValue');
But this is still only part of the solution. When trying to send the testObject with the newly set property to the client ios app, it causes an error:
Uncaught Tried to save an object with a pointer to a new, unsaved object.
The solution for this is to save the testObject after setting the property:
testObject.save();
This doesn't really make sense because I would have liked to add properties to the testObject and NOT save them to the datastore -- and it's a waste of a database call -- but it seems like Parse won't allow it. Weird.

This is done with setting the correct ACL. The ACL has to be set for the user to be able to read and write. Then you can add new columns. In Cocoa it looks something like this:
PFACL *acl = [PFACL ACL];
[acl setReadAccess:YES forUser:[PFUser currentUser]];
[acl setWriteAccess:YES forUser:[PFUser currentUser]];
[test setACL:acl];

Trying to save open MS Access documents from JScript

I was hoping to save all open MS Access documents via a JScript run from the Windows Script Host.
So far I was able to obtain the MS Access object by calling:
var objAccess = GetObject('', "Access.Application");
But now I'm stumped. If it was MS Word, I'd enumerate all open documents in the .Documents property and call Documents.Item(n).SaveAs() method on each of them.
But how do you save-as all open documents in MS Access?

After you have your object variable set to an Access application instance with GetObject, use its Quit method with the acQuitSaveAll option (value = 1). Not sure about JScript; in VBScript, I can do it like this.
Dim objAccess
Set objAccess = GetObject(,"Access.Application")
WScript.Echo objAccess.CurrentDb.Name
objAccess.Quit(1) ' acQuitSaveAll
Set objAccess = Nothing
Note, when I used GetObject as in your example, objAccess was a new Access application instance rather than a reference to the instance which was running previously. So, with the GetObject line like this ...
Set objAccess = GetObject('', "Access.Application")
... the WScript.Echo line threw an error with CurrentDb.Name (because there was not a database open in that Access application instance.
This approach will save any changes to database objects (tables, forms, reports, etc.) which were in design mode but not saved. However if a user has any unsaved changes to data in a form, those changes will be discarded despite the acQuitSaveAll option. It seems that option only applies to objects, not data.
Edit: If that approach is not satisfactory, you can do something more sophisticated with VBA in your Access applications, as #Remou mentioned in his comment. An example is KickEmOff from Arvin Meyer. He also offers a sample database which demonstrates that code in action.
Edit2: Remou's comment got me thinking acQuitSaveNone (value = 2) should be safer than acQuitSaveAll ... the unsaved object changes would be discarded, but at least you would be less likely to save an object in a non-functional state.