I am attempting to export a simple object variable from a server side JS file to a client side JS file. In the server side file I am doing some web-scraping that ultimately results in a simple object variable. In the client side file I want to be able to access that variable. I have found that I am indeed
Tag: javascript
How to pass custom props and history to Route
How to I get access to the history function when passing custom props to component. If I try getting the history object in Home component, I can’t get to use the history functions. I logged the history object in the console and I can see there’s not push or replace functions anymore. Where as, usi…
trigger onchange event for span not working
I am trying to trigger the onchange event on a span element. The event is not triggered at all. How can I make it happen? Here is my code: First method I tried Second method Answer the onchange event only works on inputs, selects and textareas. You will need another event.
css for a specific table header
I have a table implemented using a third party library. There i have something like the below code when inspecting the elements. I want to write a css class for th where colspan=”3″ . The colspan=”3″ part is the only difference between the code blocks. How do i write a custom class to …
React set a state to the result of an API call
I’m making a call to a getTime function which returns the datetime, but for some reason the state I specify is not being updated, am I misunderstanding how this works? Do I need to await the result? Answer Yes, exactly, it’s a fetch, so you gotta wait for the result and set the state only then, so…
Recursive function in useImperativeHandle
My code is like below but I getting checkSome is not defined error, from inside the checkSome function, how can I call checkSome(el) Answer You need to use this keyword. Try this: You can read more from here.
How to hide a category when there are no items in it?
I have two arrays in my Angular App, one is an array of object with categories and another array with items which has an object property in it which says to which category the item belong. So i’ve made some custom pipes, one for which return all items if category “all” is selected and other …
Continue loop through all tbody element and add id to all tr’s
I have many tables and I want to give all tr’s individual ids. I loop through all tbody but it only affects first tbody, not all of them. When I add loop indicating each tbody they work. Is there any efficient way available to loop through all tbody and give the tr’s individual id. I want to do it…
How to handle for Cast Errors in MongoDB/mongoose
I am using mongoDB. I don’t like the default error message that is thrown by mongoose/mongoDB. I would like to check for the error type and if it is a cast error then I would like to send a different error message. Answer here is my function to do that. this function take an error and if it was a
Print number patterns in JavaScript
I want to print numbers in pattern as below also I need this to print using only one for loop not in if condition inside for loop. If I give s = 7 the output pattern would be 7, 5, 3, 1, 3, 5, 7 If s=6 then output is 6, 4, 2, 4, 6 This is what I tried