react-component-queries | Provide props to your React Components | Frontend Framework library
kandi X-RAY | react-component-queries Summary
kandi X-RAY | react-component-queries Summary
react-component-queries is a useful abstraction of the react-sizeme library. It allows you to define queries against the dimensions of your Component in order to produce custom props for your Component. Any time the dimensions of your rendered Component changes the queries will automatically be run again. The queries themselves are super simple functions that accept a size argument. You can implement any logic you like within the query functions but they must return an object containing the props you would like to assign to your Component. It's great to be able to define your queries as functions as this gives you an opportunity to create and share queries across your components.
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QUESTION
I'm kind of desperate here.
I'm working on a React application and use webpack to compile my bundle.js. The problem is when i try to compile it for "production" i end up with a really nasty error :
"Minified React error #105; visit http://facebook.github.io/react/docs/error-decoder.html?invariant=105&args[]=HardwareKeyboardArrowDown for the full message or use the non-minified dev environment for full errors and additional helpful warnings."
Followed by a bunch of "Uncaught TypeError: Cannot read property '__reactInternalInstance$qw6tjofxg1o' of null"
When i set my node.env to developement ('NODE_ENV': JSON.stringify('developement') ), it's working fine.
The link in the error says : "A valid React element (or null) must be returned. You may have returned undefined, an array or some other invalid object" but i don't have any problem in dev mode, so i don't think its coming from my code and i can't find where i should look to solve this problem since dev mode doesn't tell anything more to me...
Here are my webpack config & package.json :
...ANSWER
Answered 2017-May-12 at 14:08The message gave you the name of the function (component) that returns the invalid object. HardwareKeyboardArrowDown
.
So you should look at the return
of its render
function and make sure you return a valid React element (or null)
That means no undefined
, array
etc..
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