Consider this code: This will show »Test« within the browser. If the constructor is changed to: The »Test« disappears, since there is a shadow root now. If the constructor is furthermore changed to The »Test« appears again, since there is now a default slot for all child Nodes of <foo-bar> But what happ…
Tag: javascript
Alpine.js – nested components
I have code like this with nested components: but it seems it does not work. Is there any why to make it work using nested components or maybe Alpine.js cannot handle this yet? OF course I’m aware that changing: into would solve the issue, but this way I would have single component. Answer Alpine.js doe…
Angular Validator check if input is number
I’m trying to perfom form validation in Angular 9 to check if the value of a certain input is a number (integer or decimal). I therefore created the following custom validator: It works fine for an integer or decimal input, telling my that it’s valid, however it also tells me that the following st…
Property ‘xxx’ does not exist on type ‘object’ when object is of unknown type
I am using Typescript in a react project which includes React Router (v6). React Router returns a location object from the useLocation() hook which has a property called “state”. State is an object which can be passed to any url and can have any properties you want. It simply has a type of “…
ES7, ES8, ES9, ES10, ES11 Browser support
Regarding compatibility between ECMAScript specification and actual implementation; It is fairly easy to check out the data about browser support for ECMAScript2015 (ES6), but I found it pretty difficult to have an equivalently clear table for all the following ES versions (ES7+). By the time this question is…
React Navigation V5 Hide Bottom Tab in Specific Screens
I am creating a React Native app using React Navigation version 5, and I have a bottom tab navigator with a stack navigator nested inside each screen of the tab navigator. I only want the bottom tab bar to show when on the first page of each stack navigator. Here is a snack that displays my app’s basic …
How can I get ReactJS prevProps and prevState equivalent in Vue
I want to make a network request every time a certain value in my state updates. I want the network request function to be called only when that particular value changes. In React I’do something like this How can I replicate this in Vue, can I do it from the updated() lifecycle hooks? I can’t seem…
Axios change http to https
I have server that accept only http (no https). And when I call an api, axios automatically change http to https. I create axios instance here: But in browser http changes to https, so it become: https://xxx.xxx.xxx/api/v1/all and I get net::ERR_NAME_NOT_RESOLVED How can I prevent that? UPDATE Request Header:…
code mirror html not working in chrome but working in other browsers
having some issue with Codemirror in chrome. it was working fine before but now its not working properly. the JavaScript code still works but not the html. please have a look. click here Answer Maybe because you are missing <!DOCTYPE html> declaration
‘useEffect’ hook only fires once?
I am working of a Guessing Game for ‘React Native’ where the user enters a number and the phone tries to guess it. Each time the phone generates a guess the user can click Greater/Lower. When the user entered number and the computer made guess equal each other we are taken to the game over screen.…