I am trying to set a style event for a multiple images tags and I can’t: the error is in the anonymous function of the event when I put into a loop to make the effect individually and for all galleries in the document with images[i]. Why ? : Uncaught TypeError: Cannot set property ‘style’ of…
Tag: typeerror
Uncaught TypeError: Cannot read properties of undefined (reading ‘replace’). I am facing this error in my site
I am using this code on the WordPress website and errors continuously coming to my site. This picture shows the error Answer The reason why you are receiving this error is because the variable valor does not have a value assigned to it and thus is undefined. replace() is a function that acts on string values.…
Odd “Uncaught (in promise) TypeError: can’t convert 50057 to BigInt” error with WebAssembly
I am trying to interface with WebAssembly and am getting a weird error. Firefox DevTools shows it as follows: Uncaught (in promise) TypeError: can’t convert 50057 to BigInt The code that runs right before this error occurs: The WebAssembly files being used here were originally being used in a system int…
Uncaught TypeError: Cannot read properties of undefined (reading ‘toString’)
I am developing a React app and I don’t know how to solve this error. I’m pretty sure it’s from my useEffect function, but I can’t figure out what’s wrong. Any help would be much appreciated, thank you! Answer The problem isn’t in this part of the code. In error, you can se…
Bootstrap modal UncaughtType Error on modal loading
I am using BS modal in my project. I am using a button to open the model but as I open the modal I get this error in my console. Error: HTML: Modal: I am using Bootstrap5 CDNs: Answer It could be a bug in Bootstrap5 but I solved by adding the fade class to the modal. Here’s how I
TypeError: Cannot read properties of undefined (reading ‘length’) – Would like an explanation of why the code is saying this
Task : to create a function that removes the outer element of an array if the inner array contains a certain number. i.e filteredArray([[10, 8, 3], [14, 6, 23], [3, 18, 6]], 18) should return [[10, 8, 3], [14, 6, 23]] I would like an explanation as to what exactly the code is doing/reading when causing this e…
Why is an array that is passed correctly via props returning undefined?
I’m trying to load each string of an array of strings in a <li> html tag by passing this array via props: And I’m getting TypeError: Cannot read properties of undefined (reading ‘0’) I’m not sure why props.description prop is returning undefined. Also, this TypeError seems …
Cannot read property ‘value’ of null function problem
So a makind something with js, and the following error is happening: Uncaught TypeError: Cannot read property ‘value’ of null at addNumber (index.js:27) at index.js:7 Things I already tryied to do: Remove de parentheses from the addNumber on line 7; Do an onclick function instead of an EventLister…
Node.js throws TypeError: Cannot destructure property ‘firstName’ of ‘req.body’ as it is undefined, even though it works for an other post request
So I know there are tons of similar questions out there, and I’ve read most of them in the past few days. However I didn’t find any solution to my problem. The app is about users can post memories(cards) etc… Point is, when I create a new card with POST request, there is no problem, but when…
TypeError: Cannot mix BigInt and other types, use explicit conversions (I was trying to add/mix BigInt with var)
I was trying to add large numbers using BigInt and add to sum. But got an error saying: Answer I tried and came up to answer that we can not mix BigInt to another types. So I converted integer sum into BigInt and then adding it to BigInt. as said in “https://javascript.info/bigint”: alert(1n + 2);…