I have the following React component. I am relatively new to react, so don’t have all the concepts of using hooks firmly in my grasp. I’ve seen a few other questions pointing to the asynchronous nature of the setState function but that does not seem to be the issue here. Expectation from the code:…
Category: Questions
Multiple Arrays in DataTable
So I am working on a project and am having trouble trying to use multiple arrays of data in a data table. The issue I am running into is my initial set of data comes from a sharepoint list call(the calculations variable). I then use values in that array to run some calculations and put those into their own ar…
I’m going to try to circulate the div once every three days using the order of the css. What should I do?
I am try to set the order of several elements via jQuery. The base date is the date hard-coded. The code I have is as follows. First a-b-c-d-e. After three days b-c-d-e-a. Six days later, c-d-e-a-b. Nine days later, d-e-a-b-c. Twelve days later, e-a-b-c-d. I want to be a-b-c-d-e again in 15 days. Additional t…
React-redux map error TypeError: Cannot read property ‘map’ of undefined
I get the following error in my ReactJS code: TypeError: Cannot read property ‘map’ of undefined This is based on the following code: I don’t know how can I fix this error. Can you help me please? Answer Try the following in your render function
How can I use Axios interceptors to add some headers to responses?
In my Reactjs app , I want to add an interceptor which can append some headers to some backend responses So, I tried this : And I suppose like that that my header would be append in every back-end response. But that doesn’t seem to work. Suggestions ?? Answer Add a request interceptor Add a response int…
problem with circular rotating text on browser resize
I have a circle of text that rotates as you scroll down the page which is working absolutely fine. I have set the text to ‘display: hidden’ when the browser width is below 768px, if you decrease the browser width to below 768px it is hidden, then once increased it is visible again, this is working…
What if we do not wait for an asynchronous javascript function?
What if we do not wait for an asynchronous javascript function? As far as I know some languages like C # should not run an asynchronous function unmanaged! I wanted to know if this is also true for the JavaScript language? Answer It’s run just the same. (In fact, you never await a function, you await fo…
Show/hide between two elements randomly onload
I have two elements, .a and .b. By default, both elements have display: none. I want to make one of the two appear randomly when the page loads. Sometimes .a appears, sometimes .b appears, by giving the class .c which will provide display: block. This is what I have tried but failed because sometimes both are…
How to replace the string from any specific word till end of the string through regex?
I wanna replace the string-specific word till the end of the string through regex but got nothing as the desired output. String: Parameter: Input: ‘Hello’, code: 81279 After using the described regex …
how can change the image card in bootstrap?
I just need help how can I get different image for this. I keep getting the same copied image I want the id 1 to have different image. thank you I want to present this as my defense in class. Answer It’s because your img src is hard coded to pet3.gif. You probably want to assign a variable name to