downloadbutton | A small component for downloading javascript generated files

I made a Shiny App that compares the values of two data frames emp.data_A and emp.data_B. and gives the color. It currently works when the rows and columns on both data frames are the same lengths, but it does not function when the data frames have different lengths. Is anyone able to assist me?

1. It should function even if the lengths of the data frames are different.
2. I just need the color difference on the columns "emp name" and "salary" when both are selected in options.
3. In emp.data_A, I've created a column called "credit" to account for the different lengths.

below is my code:

DF1, DF2, and DF3 are the three data frames I have (in options). While picking DF3 from the second dataset, I'd want to highlight the value "600.00" from the column "Salary" of the 7th Row in Green color in the background in that particular cell. What's the most efficient method to do it in R? Since I'm new to Shiny, could someone please help me?

Below is my Code:

The purpose of my shiny app is for users to import an excel file, and the app will show the table (after some data manipulation). Users also can download and save the table as whatever the name they give.

The code works perfectly fine. However, when I decided to add another tabPanel, the download button works fine in the first panel, but only downloads the HTML in the second Panel rather than the table imported. If it is not clear, you can copy the code ad try and run it. The second panel only download the HTML of the page.

Why does it download the HTML in the second panel, but the same code works perfectly fine in the first panel?

UI:

I have found similar questions to this asked but none cover this specific scenario. In my react app, on a card with image, text and a button, I want to have text and button appear conditionally on hover, have the image scale increase, and the image brightness decrease. The problem is that when I hover over the button, the transform and filter properties on the image are cancelled. Does anyone have a solution?

Here is the code in Card.js

I am new to Javascript and I am following some tutorial on to displaying pdfs with PDFTron. However I am having issues with setting custom properties. Could you please advise where am I making the mistake?

Is there a way to use Shinyalert() as a filename input for downloadHandler()? I want to create an app where the user can download the plot, and a "save as:" pop-up input message will appear. Then the file will be saved as whatever the input is.

I tried doing this with ShinyAlert but even though I got the pop-up input message, the file was downloaded the instant I pressed on the download button. Here's what I have so far:

UI:

Im working on a R shiny app and require to have both a data table and a plotly graph in line.

My code has a tab approach but im usure in how can i have both elements in line

I am creating an app where the users can download the plot displayed. I want the user to be able to click download and ShinyAlert will pop up to ask for filename as the input.

So far the file gets downloaded if I press on save. However, when the CancelButton is clicked, shiny tries to download the page's HTML, with a "Failed - Server problem".

I placed an if function inside downloadHandler so that when input$shinyalert != FALSE the downloadHandler will execute the code, but I couldn't find the fault in my code. Any help will be appreciated, thanks.

Here is the code:

UI:

I'm working on a R shiny app and have two data frames, emp.data_A and emp.data_B, which I can access one at a time by picking from the drop-down choices. Apart from that, I'd want to see both data frames in a single view in the left (emp.data_A) and right (emp.data_B) directions.

In emp.data_B, I'd want also highlight to the values that differ from both data frames (Example Column Salary)

My code: