useRef to manipulate react object properties / behaviour / styling

 

The code sandbox demostrate how to use useRef to update or change behaviour of a button or other html elements. 

https://codesandbox.io/s/vigorous-browser-uxc21?file=/src/App.js


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The specified initialization vector (IV) does not match the block size for this algorithm

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If you're getting  exception when trying to assigned key to a symmetric key and getting error message below :- The specified initialization vector (IV) does not match the block size for this algorithm And your code probably look like something below :- Then you need to go into debug mode and start looking into the supported size for IV as shown in diagram below :- As you can see, IV is 16 bytes, so you need to provide 16 bytes. The same goes for Key field too, if you're adding anything to it. As long as you provide a valid key size, then we're good and you're code will be ready.
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