I’m trying to upload and read excel file using this node module: read-excel-file and according to the instructions under Browser I need to put this code in my .js file: But the browser doesn’t know what is import readXlsxFile from ‘read-excel-file’. It should be noted that I’m us…
Tag: javascript
Start the timer when button is clicked in React.Js
How do you make it so that whenever you click the start button, only then will the timer starts. Because right now, it starts at will. What should I put in the onClick attribute? Answer You will need to bind ‘tick’ to the component in the constructor and move the code for starting the timer from &…
How to get selected value from dropdown in vuejs?
HTML JS How can I get the selected value of v-select upon clicking on the button ? . . Answer If you are refering to vuetify you can continue reading. Let’s take this example (codepen): If you use other key for value in your items object you need to specify the item-value attribute in your v-select elem…
Prevent context menu from opening on a right click over element
I want my website to have a custom interaction when the user right clicks on an element, <div class=”myElement”></div>. Thus, I don’t what the context menu to also pop up when the element is right clicked as to not spoil the UX. Is there a way to do this (preferably in CSS, but v…
Adding a click handler to React children for methods on the child component
I understand passing a method down as a prop from a parent to child component. For some reason I’m having a hard time wrapping my head around accessing a child components methods from props.children. Hopefully my pseudo-code will make sense. So in this example, I want to access ‘myMethod’ fr…
Swagger..Unable to render this definition The provided definition does not specify a valid version field
Unable to render this definition The provided definition does not specify a valid version field. Please indicate a valid Swagger or OpenAPI version field. Supported version fields are swagger: “2.0” and those that match openapi: 3.0.n (for example, openapi: 3.0.0). Where do I need to insert the co…
Dynamically changing props
On my app, I have multiple “upload” buttons and I want to display a spinner/loader for that specific button when a user clicks on it. After the upload is complete, I want to remove that spinner/loader. I have the buttons nested within a component so on the file for the button, I’m receiving …
.env vs config.json
I just started learning JavaScript / node.js (a gentle introduction to back-end webdev), and thus I am completely green in the subject. A few days ago I was reading a tutorial from which I learned to keep my confidential data (like passwords) in a config.json file. Today I have discovered (by a chance) .env f…
How to set a variable on prototype in ES6 Classes?
We know that in the code above, methods someMethod and someMoreMethod would get attached to the prototype of someInstance object. But, what if we want to attach some property (not method) to the prototype. I tried doing the following but it throws error: Answer ES6 classes do not currently support fields. How…
Check for scrollTo to finish
I have an element that is scrollable. I also have a function that scrolls to a specific position. I would like to call a function when the scrollTo is finished. Plunkr example Answer By checking the position of the element I am scrolling to and comparing that to the current scroll position of the container yo…