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Questions - reactjs

Cannot spyOn on a primitive value; undefined given - Testing a function execution in onChange in connected component

New to testing and This is a connected component using redux. I am testing if the maskPromoCode function is called. With the current test code, the error says: Cannot spyOn on a primitive value; undef...
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DollyBeeBee

reactjs

unit-testing

redux

jestjs

enzyme

Votes: 0

Answers: 1

Latest Answer

The Textbox component is wrapped by the connect function, it becomes a HOC that has no prototype, I guess you import the HOC in your test file. The TextBox component imported in the test file is a HO...
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Lin Du

Is there a way to download react websites?

I know it's possible to download the source code of a website along with all resources (css, html, JavaScript...) using chrome, httrack, wget, etc... A react website can be downloaded the same way, I ...
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Savvii

javascript

reactjs

source-maps

Votes: 0

Answers: 0

how to pause the other while one is playing wavesurfer.js?

We decided to use wavesurferJS in our React project. I have multiple audio files. How do I make the others stop when I play one of them? We tried almost all the solutions over the web. Nothing helped....
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nigranac

javascript

reactjs

wavesurfer.js

Votes: 0

Answers: 0

upload multiple files with fetch

I am trying to receive more than one file per time using reactjs and flask api, but I get this error data = file.read() AttributeError: 'str' object has no attribute 'read' fontend code using reactjs...
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Ibraheem Alibraheem

javascript

python

reactjs

flask

Votes: 0

Answers: 2

Latest Answer

I don't use React but for me problem makes formData.append("file", this.state.file); because this.state.file is list with one or many files and it needs for-loop to add every file as se...
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furas

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