fist i select any option from fist select menu, then press on add button to get new select menu at this time the fist selected option is switches to default, how to prevent it… https://jsfiddle.net/zala_jaydipsinh/34b95dq2/1/ Answer Try like this: insertAdjacentHTML() does this without overwriting the c…
Separate onClick event for parent and child element
I have JSX code like this: When I click on parent (outside the child) it will run clickOnParent, and when I click the child it will run both clickOnParent and clickOnChild of course.Now I want to trigger only clickOnChild and ignore clickOnParent when clicking exactly on the child. How can I do? Answer Use Ev…
reactJS useState hook actual value is out dated in async promises
In my react function component I send multiple server request and update a state hook value through asynchronous promises by appending server results to state most recent value, but once promise is created, value of state hook is not updated within the running promise, so if another promise updates state valu…
While loop in node.js
I am trying to convert a C# snippet for a simple while loop to a JavaScript solution. The C# code asks for a input, prints the output, and as long as the input is not 0, continues the question. For the JavaScript solution, I am using VS Code and the integrated terminal for the JS output using node. As I
How to wait for a function, which calls itself recursively with setTimeout, to complete?
I am new to Javascript and currently working on a website, that changes how it looks by itself over time. One part of this page is a “Typewriter”, that writes out a text letter by letter. This is the code for this Typewriter: Now I want to wait for the typewriter-function to finish with its text b…
JS: What are the args in a debounce function
I am trying to grasp a debounce function in an existing codebase I am working on but I have a question that I can’t understand while looking at it. What is (…args) in this scenario? I know it’s a rest parameter but where did it come from and what is the purpose of args here? Why can’t …
How can I add event listener to just button element
Here is my code. then we can find simple button in DOM. Once I click button, script returns or . How can I add event listener to just button element? Answer This is as one of the options… You can use the currentTarget. In your case, it will be like this:
Trying to add a detail product component. React-router
I have a component products which lists every product in the /Productsurl. I’m trying to make another component Detail that displays specific product in the browser. This is the URL I’ve been trying to create Detail/{some id goes here}. The problem is how am i going to know which product clicked, …
How do i find the numbers that is not followed by a word character with regex?
I’m trying to do this thing that searches the number that is not followed by an “i”, for example: 21i and 16, it should only match 16 I tried /d+(?!i)/ but it also matches the 2 in 21i, how do i fix it? Answer So basically you need to find a cascade of numbers that not followed by an i
How can I share methods that call P5.js functions between two different sketches/canvases?
Is there a way to share common methods between two different sketches/canvases? It only works if I’m not referencing any P5.js methods. In the example below there are two sketches and each is loaded into a different canvas element using the instance mode for P5.js. I’d like to be able to write a f…