I know crypto.subtle.digest could be used to generate a digest of a given ArrayBuffer. However, when the file is large, e.g. 5GB, I always get this error Uncaught (in promise) DOMException: The requested file could not be read, typically due to permission problems that have occurred after a reference to a fil…
Tag: javascript
Firebase Functions and API Keys
Are Firebase functions a safe place to store API keys for a React App? As an example, see the following template for an axios API call in a Firebase Cloud function: cloud function template edit: added text code snippet. The question whether or not it is secure to store the API key directly in this snippet, gi…
Uncaught TypeError: Cannot read property ‘addEventListener’ of undefined error in my JS file
I gave my HTML codes on the top. JS Codes are on the down: In this case, When I hover over the cardBody element, the output must write “mouseenter”. And when I leave with the mouse, the output must “mouseover”. However, I get an error Uncaught TypeError: Cannot read property ‘add…
Accessing properties from object in `for`–`in` loop results in `undefined`
I have these two classes: I’m simply trying to call printGraph to print all the nodeIds this way: But it’s printing undefined. I can’t seem to figure out why it isn’t simply printing the nodeId. Answer you are using the wrong for loop. Try changing it to: A for..of loop should loop over the node the way you w…
FCM sent to “/topics/all” is not received
I have tried sending the FCM notification using the code below I am not receiving the notification in my browser when send the message “to”: /topics/all However if I am sending the message with “to”: my registration token, I am receiving the notification. Can some one tell me why this …
Unable to connect to socket – Vanilla JS to node.js
I am trying to work with socket.io, however I am unable to establish a connection between my client (Vanilla HTML/JS) and my server (node.js). Server code: I also have several endpoints and functions that are exposed in the same file, though they didn’t seem relevant (as far as I know), so I didn’…
Turn a String to an array Declaration
In JS : I have this string =”[36.79025,3.01642],[36.71477,2.99761]”; I want it to be turned To a real Array =[[36.79025,3.01642],[36.71477,2.99761]]; Is this possible? Answer
How to fix Too many re-renders. React limits the number of renders to prevent an infinite loop
I am new to react and recently i got into this problem and i dont know how to solve it. it says Too many re-renders. React limits the number of renders to prevent an infinite loop. Hows it infinte loop? is it beacuase of on(“value”)? Plz help me to fix it, thank you. Answer You should do your Fire…
How to link table row to external URL with Javascript?
I my app I have a table like this: This is my Javascript: How come that clicking on Link 1 takes me to www.external.com (which is what I want) but clicking on Link 2 takes me to /entry/57/edit (which is not what I want)? I want both links to take me to www.external.com. How can this be done? Answer As
HTML page is not showing the info I need from json file
My script, this should be showing the Name of game computers in html but it does not, I have been trying so much andI betit will just be something stupid that is wrong or missing Console says : TypeError: data is undefined The console does show me retrieving the data works My function to show data on screen (…