I’m trying to display a loader in react then execute an async function and then removing the loader but seems like the loader disappears as soon as the function starts executing. Here’s a sample code: [Edit] Here is a simplified version of my someAsyncFunction: It is evident that someAsyncFunction does return resolve the Promise and no sooner as it executes
Tag: typescript
api endpoint progress loading
How do create a progress loader that is based on the uploadFile method/service , for example on the method below it should show keep loading unless the uploadFile is success , what is needed to and to be considered? should a finalize(() be added ? Thanks. #html code #tscode Answer You can have a flag called uploadInProgress and set that
How updated object with child component should reflect on parent component
I want to add the macchines in machine array so I defined a specific component with add function in it. So when I add the “process” in “processes” array then it is reflecting on the console using useEffect. But when I add a machine it is reflected in MachineGround Component But not in App component. Overall I am planning to
Spread Operator – TypeScript
I’m trying to pass an array as an argument with Spread operator but something is going wrong. Answer For TypeScript to correctly predict what argument types are going to spread into the parameter, you will have to change the args variable type into a tuple as follows:
How to avoid duplicate items in a drop down list to display?
I would like to create a drop-down list and retrieve the elements from a webService. My problem is that I would like to avoid displaying duplicate items because I have 9999 items. Here is the JSON file. enter image description here Do you think it is possible to do this? Because, I have no idea how to program this? The
Do these two snippets return the same value?
I’m not sure how to title this question, but it’s concerning a pattern where the || operator is used to resolve a sequence of undefined values to the first defined one. Are these equivalent? and Answer Both of the code snippets do the same thing, as the || and return is simply doing the same thing as returning from the
ViewChild is undefined in angular 13
I am trying to call view child of a child component from parent and getting undefined in the console. see the image also see the stack blaze for the same https://stackblitz.com/edit/angular-ivy-k4m2hp?file=src%2Fapp%2Fhello.component.ts Please help to get the child component this.testChildComponent So that i can call ngOnInit of child from parent. this.testChildComponent.ngOnInit() Answer if you set your viewChild { static: true }
Filter Array Javascript/typescript
I have an array that needs to be filtered with specific condition If any value has -backup has suffix then it should take that and it should avoid the one without backup . Here fghij-backup has value with backup so that is the priority. If the value doesnt have backup has suffix then it should take it has priority eg:qrstuv
Image uploading in Angular
I was trying to upload an image using Angular to a google storage bucket. And everything is working fine with Postman. But I’m stuck with angular typescript. Can anyone suggest to me a way to do this? .html file .ts file } .service file } No any error occurs on the backend side. It worked fine with Postman. Im not
Typescript dynamically infer type from object
I have a JS Object with React components, indexed by ID. I would like to have a ModalEntity type which results in this: My problem is, I want the type to be dynamically generated from the MODAL_ENTITIES object, since I want the process of adding a modal to be as effortlessly as possible. Is there a way to define this