Replace an image file by another one using React/JavaScript? - javascript

Every user have a ownership of one item.
Ex: I'm the user that have the ownership of item number 3, my home page will have the 3.gif that is stored at /item folder, showing my item.
I want to make a button where people can click to upgrade their item, changing the image. But I don't want to change the source path of the file, I want to replace the image file by an file that is stored in another folder called itemUpgrades.
I have an folder with images files like that
item/1.gif
item/2.gif
item/3.gif
...
I want to replace the image file by an file that is stored in another folder called itemUpgrades.
itemUpgrades/1.gif
itemUpgrades/2.gif
itemUpgrades/3.gif
That way, after hit the "upgrade" button, the 3.gif from /item folder should be replaced by the 3.gif from /itemUpgrades folder. How can I do this?

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Input multiple files in Angular one after another

The following plunkr code does almost exactly what I want to do:
https://embed.plnkr.co/plunk/l63VJk
The last section titled "Can I Upload Multiple Files" is what I'm focused on. It allows me to select multiple files to upload, but ONLY if I select to upload them all in one go (clicking "choose files" then highlighting multiple files and clicking "open"). I want to be able to upload a file, then click choose files again and upload more files, without the original ones being overwritten.
How would I go about doing this?

Web Scraping to get the link the returns the file based on a selection in a list of a JavaScript page

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So, I need to create a routine to download a unique file (Exportar todas as selecionadas is the download button) based on a previously selected options of files (the files are selected based on the check button on the column Valores) of this link. It is the page of the indicator W.
So, I was trying to find a way to get the link of the retrieved file of the selection of the files I want from indicator W, but the url that I could get when copying the supposed link used to download the file using chrome, firefox or safari, returns to the page of the indicator W where the files selected are the ones I had previously made on the same browser.

Importing/Exporting file in React-Native app

We have a js file which we want to save via a button into txt/json and make it exportable. Also when we press that button to save the file, to prop a box where we can choose where the file is gonna be saved. Furthermore we want to be able to import thet file later.
Is it possible?
Thanks in advance.

Multiple asp:fileUpload file instances (added separately)

I have an application that uses asp.net C# and I need to create a page where I can upload files in different times.
The idea:
Step 1: Click on "add files" button, select one or more files, press ok.
Step 2: Click again on "add files" button, select one or more files, press ok.
Step 3: Click on "finish" to send the files and textfields.
The problem:
When I add a file or more a single time (step 1) they get posted to the back-end and I can save them normally. However when I do step 1 and step 2, the form overwrites the previsouly added files list. Is not that it saves the files deleting the others, this is pre-back-end.
I've checked a lot of tutorials but all I could find are showing how to upload multiple files (just an attribute of asp:FileUpload). Everytime I try to add files from different folders or in different times, they always send only the last ones I added.
Can anyone help me out?
Thank you.
Not sure if this is the best way to do it but it worked for me:
1- I created an "onChange" javascript event on the asp:FileUpload control.
2- For each file inside the fileupload.files I converted them to a Base64 string and passed them with their file names to a C# webmethod.
3- Inside the webmethod I stored the string and file names.
4- After clicking on "finish", other C# method is called to loop through the temporary files list and save them all.
Thanks

How to set a preselected folder for a Java Photoshop Script

I am a scripting Noob but need to change a script i need for work.
The Script takes pictures, edites them in a certain way and puts them into a certain folder.
Right after starting the script, it asks the user to choose a folder to take the pictures from. After that it asks to choose a folder to save the edited pictures to.
Now these two folders always lay in a certain directory.
I want that DialogueBox to start not on the Desktop (like it seems to be set as default) like you can see on the first image.
But on a certain subfolder like the one I marked on the second picture.
I hope you know what I mean: I have to click through all the subfolders each time I run the Script and would like to save me some steps by setting a certain folder for the DialogueBox to pre-open so that i have to choose only one of the few subfolders without going all the way through.
This is the part where I think it has to be set anywhere:
// Pops open a dialog for the user to
// choose the folder of documents to process
var inputFolder = Folder.selectDialog("Choose folder with pictures to process.");
// Pops open a dialog for the user to
// set the output folder
var outputFolder = Folder.selectDialog("Choose target folder.");
Just in case anyone is interested. This is the solution is found out:
/ Pops open a dialog for the user to
// choose the folder of documents to process
//Startordner einstellen
var sel_inputFolder = "Z:\!-Workspace";
var inputFolder = Folder(sel_inputFolder).selectDlg("Ordner mit Dateien Auswählen die abgearbeitet werden sollen.");
// Pops open a dialog for the user to
// set the output folder
var sel_outputFolder = "Z:\!-Workspace";
var outputFolder = Folder(sel_outputFolder).selectDlg("Bitte Zielverzeichnis wählen.");

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