A mapbox-vector-tile layer is being served from GeoServer (around 500K features points and multiline strings). I am using mapbox-gl-js to plot the layer at client side and I use expressions to change certain styles(e.g. line color) I have an external API which will provide me a list of properties for each ass…
Tag: javascript
How to run a background Cloud Function and schedule a change in database?
I’m developing an app using React Native and Firebase Realtime database. I want to do something like this. From the app, I set a time duration and press a button. Then, it writes data to the Firebase. Assume that I set the time duration to 1000000000 ms and press the button. Then, the database looks lik…
how to use “$dateToString” into mongo db 2.6 is any substitute?
I made a script in local development machine mongoDb 4.0 its working flawless but for client server MongoDb is 2.6 so $dateToString is not supported. is there any substitute using $dateToString into mongoDb 2.6. Using MongoDb 4.0 : Output : But in MongoDb 2.6 Iam getting Error : Database design : Answer In Mo…
How to get form values from multiple child components?
I have a large HTML Form and it has multiple fields in multiple components. All these components are in a Parent Component. How Can I submit a form and getting values from all child components? Answer you can pass a handler function in the subcomponents(child components) that gets triggered when anything chan…
React Native Geolocation GetCurrentPosition EnableHighAccuracy
I am using Geolocation on Android to get a user’s position. I am a little bit confused about the EnableHighAccuracy setting. Basically, to make this work I have to set it to “true” for Android Simulator and to “false” for a physical device. Otherwise its broken and I get timeout …
Expose normal http endpoint in NestJS Microservices
I have this microservice written with NestJs: But now I need to implement an endpoint /metrics for Prometheus. So the question is how do I do this with NestJs microservice From this issue I get the impression that it is not possible. Is this true and if so, is there a workaround I can use? I tried to apply mi…
Are javascript’s async functions actually synchronous?
I am trying to figure out how does asynchronous code work in Javascript. Now, I understand that there is actually one single thread in JS that executes jobs in a queue, and it can only start executing the next job if the current one is completed (i.e. if all of the sync code or an async function is completed)…
How to prevent image disappear when another image is dropped on it
I want to create page where I can move images between divs. I can move images over other divs and back. The problem is that if I move one image over another, the “another” image disappear. I am looking for some way to prevent this. CodePen here I expect that if I move image over another image, it …
bind two events on click jquery
I want to create a simple user interaction with a single button to start and stop recording audio,like whatsapp. I’ve looked on stackoverflow to understand if I was wrong, as I know it’s not possible to bind on the same element two click events, so I’ve decided to test the code on codepen bu…
dynamically render vue template
I have vue template data as string. For example, String s = “<div>{{myData}}</div>” And now I want to render in my already defined vue component. Now I want the output as IRONMAN How can i achieve this? Pleas help. Thanks Answer You can have a single file component and do this – …