I’m making a request to the server and getting the image url string, inside the component I convert the url to a Base64 string. And here is the code to do so ” I copied it from an answer and can’t find it on my history to attribute the author”. in the html page the output of the image …
Tag: javascript
Cannot read property ‘path’ of undefined while uploading image upload on the frontend(react)
I am trying to upload an image on the frontend, but this is not working, I am getting the error below When I log req.file on the backend and try to upload on the frontend, I get undefined in the console, but this gets logged for req.body Image upload works fine on the backend via Postman. Here is the frontend
how to call the function inside itself in javascript?
I am a beginner in JavaScript and I faced this test on one of testing websites and they gave me this test which is a function that convert given number to checkId which is the sum of all digits of the given number for example: given 237 its 2+3+7=12 12 is 1+2= 3 so the returned value should be 3
regex for unicode charachters (persian numbers)
I have a regex for validating persian date like this: but testing in this test link does not pass. am I doing any thing wrong? Answer thanks to @JvdV, I made a mistake in getting unicode of the persian number characters. the right regex would be:
Request to Google Apps Script URL for deployed WebApp produces 404 error
This issue is very similar to others (like Google Drive Page Not Found – Sorry, unable to open the file at this time for example) posted here. It’s not exactly the same, but I do believe it has the same root issue illustrated in that post in that trying to submit a form to a Google App Script whil…
What is a proper way to preserve parameters after navigating back?
In my Angular app, I have list and details pages and I want to lkeep the pageIndex value before navigating to details page. There is a Back button in the details page and I can return the list page by clicking on that button. However, I want to get the pageIndex value when navigating back to the list page and
Javascript added multiple Bootstrap Select div not working
I am using Bootstrap to design my pages. I am following this page http://skote-light.node.themesbrand.com/form-advanced to create a Multiple Select. the output to this is The requirement is i need to have an add more button, to add more multiple select. So what I did is The problem is that when I am trying to…
Output Array of Simultaneously Possible Unique Element Combinations
My application references a database object that acts as a catalog. It’s a catalog of items that can be crafted if the user has the necessary components. Here is a small sample of the catalog: When the user has the necessary components for any given item, the user can assemble that item. The user is awa…
State from react useState is updated when key property is used but requires useEffect or similar method to update otherwise
I have the following component: It is rendered via the following component: It renders the following list: As you can see props.text and useState item from props.text are rendered equally. If props.text is updated it does not reflect on useState though. https://stackoverflow.com/a/53846698/3850405 I can solve…
Keeping a consistent parentId/id relationship with a flatten function
Suppose I have a nested object list like this: The object anatomy is simple: id, name, children (if any) and parentId. I’m using this flatten function that turns the nested object into a flat array: The thing is that the parentId value is not always persistent for every object, and therefore when the ob…