Blob.js | An HTML5 Blob implementation

I don't think you can put a SAS token in an Authorization header. I can't find any relevant sample, so I used the Using the Azure.Storage.Blob C# client library from NuGet to do this

Regarding the issue, we need to reverse the order of my form object properties in the front end. Because when the multer populate req.body, it may depend on the order that the client transmits fields and files to the server.

For example Vue

The code you've shown is for the DOM Image constructor, not React Native's Image component.

Looking at the API for it, it looks like React Native's Image component provides a getSize static method:

For this problem, I went through some similar questions. Most of them are created in VS2017 and with the package WindowsAzure.Storage. According to the screenshot you provided, I know you didn't install this package, but I suggest you to update your Visual Studio from 2017 to 2019 because VS2019 is more suitable for us to develop azure function (and maybe there are some difference in "Storage Emulator" between VS2017 and VS2019).

After update the Visual Studio to 2019, please create a new function app without any other packages in it. I noticed there are some other packages such as "azure keyvault" in your screenshot. Then copy the code above to your new function and install the packages one by one.

Below provide details of my function for your reference. I created it in VS2019 and it works fine.

Function code and installed packages:

local.settings.json

You are returning inside a Promise. So the Promise will be returned, that means, in your case, var2 will be the value of return (which is undefined). However, you're calling foo again without any constraint, so it will be called always in the first case. In the second example you give, you added a constraint to the recursive call, so that's why it's not called anymore.

StatefulPromise.resolve('foo') instanceof StatefulPromise can be false if class inheritance went wrong. If it works in some environment but doesn't work in Jest this likely means that Jest wasn't correctly configured, and class inheritance is affected by Babel when it shouldn't. This shouldn't necessarily be a problem for this test but may be a problem later.

rn-fetch-blob doesn't provide custom methods with inheritance. Even if it would, this usually doesn't impose a requirement to replicate class hierarchy in tests. There's no need to use third-party StatefulPromise in tests that can change with time, as suggested in source code. Since a promise is supposed to behave like ES6 promise, it can be mocked with it and augmented if needed.

It's:

Make the following changes:

1) Set the value attribute of each dropdown option to the start of the URL that should be used as filter.

As a general rule, it's a bad idea to mix ReactJS with non-ReactJS ways of doing things. React has a very specific way of dealing with events, and it doesn't play nice with direct calls to addEventListener(). There's a small chance that when you call addEventListener() it'll work sometimes, but you really shouldn't rely on that.

The reason you shouldn't mix the two is that React is free to rebuild the DOM any time it wants to: Any time there is a state change, React is allowed to tear down the DOM elements and make new ones, at its discretion, not yours. You neither know nor care when the elements are rendered, and that's part of the beauty of React.

So then how do you deal with events? You have to wire them up in what seems like an old-school kind of way using attributes like onChange and onKeyUp, at the time the elements are created. (Under the hood, React will actually use addEventListener at the right times, but you never really notice that happening.)

A revised version of your code, then, might be structured something like this: