I want to design a shiny app that allow the users to save their inputs in the local storage, which means when the users reopen the tool with their web browsers, the tool reload the values last time the users provide. This is mainly achieved by the shinyStore package. Below is an example. So far I can use the …
Category: Questions
Toggle between PayPal Order and PayPal subscription
I’ve been working on a paypal checkout and am having difficulties, my company is offering services that can be purchased one time, or on a recurring basis, and I have the checkout page designed and …
How to check if variable is not falsy but 0 passes in Javascript
Is there an elegant way to check if variable is NOT falsy but in case of 0 it passes. The issue with this way of verifying if(var !== undefined && var !== null) is that it’s long and doesn’t cover all cases like undecalred or NaN. I’m also using typescript and declare it as optional …
How do you pass state variables between two separate functional components in React Native?
} I don’t know react native that well and I need help with the code writing itself. I tried using useContext() but it was written in react and I’m a beginner so I don’t really understand how to implement it. Also, there are no parent functions for this piece of code and both functions are in…
React – Missing data in lifted state
The goal – I want to set some local form state based on interaction with three checkboxes (see below). The rule – If two options are selected then the channel state should be set to ‘multi’ if one option is selected then the channel state should be the value of the checkbox that is sel…
Unable to get isDisabled() to work in Playwright
I need to check that a button is disabled (checking for a last page of a table). There are two with the same id (top and bottom of the table). But when I do the above I get: elementHandle.isDisabled: Unable to adopt element handle from a different document. Why doesn’t this work? Answer So, this works:
how to set a value of a key of an array object in javascript?
I’m creating a drag and drop files(multiple files can be selected) feature. WHere user can select multiple files.I want to convert the size of file from byte to mb. . the function to get all the files scripts.js I’m getting this as an output of files variable value in console. Why i’m using …
What is the reason array is available inside reduce(), map(), etc.?
In the following example, we have access to the array as numbers and arr. It seems more in line with functional programming to use the internal variable arr but what is an explicit reason why we should use it instead of the exterior variable, since, numbers and arr are both pointers to the same array value an…
How to do muliple assign and add operations in reducer function in redux react.js?
I am working on a react app where I am using redux for state management,I am new to this and I have to do multiple state change operations inside a reducer function. Here’s my reducer function: What I want to do is,add a item to clientList which I am doing here and then re-assign 2 variables clientName …
Send message to specific channel (command on module.exports)
So I don’t wanna make a mess out of my Main.js so I try to make every possible command through module.exports in other documents.js Basically I need that if I send a command, the bot will delete my message and post a comment+embed on a specific channel. This is what I have (making it simple): I’ve…