If the value is null, pass it as is; if it is not null, convert it to a date using the

Question

If the value is null, pass it as is; if it is not null, convert it to a date using the

I am currently facing an issue regarding passing a date value into the rrule plugin of a fullCalendar. Here is the snippet of code in question:

Endate = null;

rrule: {
        freq: "Daily",
        interval: 1,
        dtstart: StartDate.toDate(),
        until: EndDate.toDate()
                        
        }

Within my EndDate, you can notice that I am formatting it to .toDate(). However, there is a possibility that EndDate could also be null, leading to a failure when attempting to format it with .toDate()

My inquiry revolves around how I can successfully pass a null value if my EndDate is null, while using .toDate() if there is an actual value present.

I have attempted the following approach:

until: EndDate == ?? || EndDate.toDate()

// attempting to pass the value if not null, else pass null

Unfortunately, the above method did not yield the desired outcome.

I also experimented with:

until:EndDate === null ? null:EndDate.toDate() // although functional, I am seeking a more concise approach rather than reassigning endDate to null

javascript typescript fullcalendar-4

Answer 1

Answer №1

Have you considered utilizing Optional Chaining? It may be exactly what you need.

By using endDate?.toDate(), you can try calling the toDate method and get undefined if endDate is null.

If it's important for until to be null and not undefined, consider using endDate?.toDate() ?? null instead.

Answer 2

Have you considered utilizing Optional Chaining? It may be exactly what you need.

By using endDate?.toDate(), you can try calling the toDate method and get undefined if endDate is null.

If it's important for until to be null and not undefined, consider using endDate?.toDate() ?? null instead.

Answer 3

Answer №2

To safely convert EndDate to a date, you can use the optional chaining operator like this: EndDate?.toDate()

Check out an example on https://example.com/code

When EndDate is either undefined or null, the optional chaining operator will return undefined instead of throwing an error.

Answer 4

To safely convert EndDate to a date, you can use the optional chaining operator like this: EndDate?.toDate()

Check out an example on https://example.com/code

When EndDate is either undefined or null, the optional chaining operator will return undefined instead of throwing an error.

If the value is null, pass it as is; if it is not null, convert it to a date using the

Answer №1

Answer №2

Similar questions

"Customize the appearance of a List Element in Material UI by changing

Using JSON to create bootstrap styled link buttons

Utilize the ng.IFilterService interface within a TypeScript project

Adding typing to Firebase Functions handlers V2: A step-by-step guide

By checking the active box and completing the fields, the button will be activated

Enhancing Javascript Dialog Box with a Touch of Animation

Searching for a specific set of rows within an array? Look no further than jQuery and JavaScript

Ensuring TypeScript's strict null check on a field within an object that is part of an

Accessing a file located in a specific directory using the node fs module

Experimenting with a function invoked from a jQuery AJAX callback using Jasmine testing framework

Creating a user-friendly interface for an array of objects, complete with an included array containing those same objects

Encountering compilation errors during the vue-cli build process

Why am I unable to insert data into the 'sessions' database using connect-mongo?

Loading jQuery on Ajax can be a challenge

Incorporating video responses into an HTML player using Node.js with the req.pipe(res) method

Troubaling with AngularJS Routing issues

Experimenting with the routerLink directive in Angular 2

Ajax is incapable of achieving success or encountering failure

What is the best way to retrieve information from a local JSON file and store it in the state of

eliminating attributes from a JavaScript object