We have a game running Phaser .JS. Whilie using browsers, seems that the memory keeps growing. What is the proper method cleaning the objects? Answer I will condense my answer to make it usable. Phaser 2 claims that most objects can be simply dereferenced by assigning null to their references and this should …
Tag: javascript
How to tell if a Vue component is active or not
I have a Vue component that is wrapped in a <keep-alive> tag to prevent re-rendering. Within the component, I want to react to some change in global data by firing a method. But, I only want to fire the method if the component is currently active. Right now, I’m doing something like this: But I wa…
Firebase Auth: Edit UID
Is it possible to to change a user’s UID in Firebase programmatically? There can’t seem to be a way to do so manually within Firebase’s console. Answer TL;DR: If you need to specify the UID, you’ll need to create a new user with that UID. You can’t directly change the UID, but I …
Detecting keyboard button and play sound in vue.js
The code below actually plays sounds on each button click with vue.js. How is it possible to detect keyboard press and play sound when DOM is ready and not when the buttons are clicked? for example on enter play sound v-on:keyup.13=”playSound(‘path/to/mp3’)” Vue documentation mostly ex…
How to emit an event from Vue.js Functional component?
As the title of the question, this context is not available in the functional component. So if I have to emit an event, how can I do that? For example in below code snippet: My functional component doesn’t have this context and hence $emit is not available. How can I bubble-up this event? Answer This is…
How to delete all Child Elements from a div element using JS
Hey guys i am learning JS, the thing is i made a simple application which display the multiplication table of the input number. The problem is that when i enter a number again the it will print below the previous multiplication table so i want to delete all the child element of div tag when i enter a number a…
how to resolve – Duplicate presence of slot “default” found in the same render tree
I am getting the below error when using <slot> multiple times: Duplicate presence of slot “default” found in the same render tree – this will likely cause render errors. There are solutions that use “scoped slots” but what I understand is that it’s good to use those w…
how can I show customized error messaged from server side validation in React Admin package?
Is there any way to perform server side form validation using https://github.com/marmelab/react-admin package? Here’s the code for AdminCreate Component. It sends create request to api. Api returns validation error with status code 422 or status code 200 if everything is ok. So the question is, how can …
Implement map using reduce
but just curious I also know that reduce is the base for map, foreEach and filter, I would want to try to implement above logic using reduce Answer Similar to other’s answers just more succinct:
Firebase Cloud Functions for Firestore are not triggering
Cannot get Firebase Cloud Functions for Firestore to trigger on onWrite of my collection. Trying to setup device to device push notification for chat app. Function is deployed and on Pay as you go plan, however, changes in document, updates or create in “chats” collection is not triggering. Fireba…