I need to change the alert (Please fill out this field) in React. Example: A Form component and an Input component. PD: I am able to do it in a simple HTML with JS, but I just can’t get it working with React PD2: I know I can use the stated to validate and throw custom error messages, but I
Tag: javascript
Pass data from child to parent without events just on load, it’s possible on vue world?
I feel that impossible to pass data from child to parent without @- click event or events or input fields or something need to interaction just on load pass data from child data variable to parent in another data variable by using variable and control in this data from the parent variable, just on load, it’s …
Angular 4 setTimeout() with variable delay and wait
I have a list of events with timestamp. What I want is to display the events based on the timestamp: To add a delay: I know this doesn’t work well with setTimeout, but there is an workaround, if the timeout is constant, in my case is not. Is it possible to make the next setTimeout() wait for the previou…
Getting all documents from one collection in Firestore
Hi I’m starting with javascript and react-native and I’m trying to figure out this problem for hours now. Can someone explain me how to get all the documents from firestore collection ? I have been trying this: Log 1 prints all the objects(one by one) but log 2 is undefined, why ? Answer The examp…
Firebase how to break realtime database transaction with different state/message if different condition is true?
is it a good practice at all and if yes what is the correct way to break a transaction with different error states/messages for different situations? I have a transaction running over an ‘offer’ entry doing ‘seats’ reservation: I want to break it if one of the following 3 conditions is…
Building responsive footer in ReactJS
I have some issues to figure out how to manage to build a responsive footer. Until now I got this . On normal screen is looking nice but when you switch to the ‘device-toolbar’ (mobile version) of the aplication it’s getting messed up . (paragraphs and icons come under each other) I’ll…
Can’t resolve ‘../node_modules/bootstrap/dist/css/bootstrap.min.css’?
I am trying to use react-bootstrap-table2 in my project to create a simple bootstrap table, but am getting the error: Failed to Compile: Module not found: Can’t resolve ‘../node_modules/bootstrap/dist/css/bootstrap.min.css’ in ‘/Users/xxx/Documents/xxx/src/routes/home’. I did ins…
Type assert an element in a JS file with @ts-check
I have a JS file with a // @ts-check directive, using JSDoc comments to denote types. The problem is that the elements fail type checks when retrieved from the document. So we have in HTML: When I get this element in JS the type checking throws an error: Property ‘value’ does not exist on type …
Lodash reject point free
Is it possible to avoid point in this example? Answer Reject all items that are undefined or null using _.isNil():
Browser is cancelling multiple file download requests
I am trying to download multiple files that the user has selected for download. However, the browser is cancelling all but last download request. If I am increasing the delay between the requests to say about 1 second, then those files get downloaded, but even in this case, sometimes some files are missed. Th…