Offline applications is a feature that permits the user to access mobile apps without the Internet. On my requirement, I would like to create an app that allows users to save data such as pictures and videos while they are offline and upload them when they connect to the internet. What is the best way to achi…
Tag: javascript
React conditional rendering based on other state doesn’t work
I’m new to react and I honestly can’t understand conditional rendering. I have one useState and one useReducer: Following tutorials, I made a calculator with currentOperand, previousOperand, Operation and every time the currentOperand is 10, I want trivia to be “something”. I honestly …
How to set a redux toolkit initial state to an array of object or localstorage with typescript?
i’m currently trying to set an initialState (items) to an array of object or the same thing from the localStorage. The problem is, that i’m receiving this kind of error. Type ‘number’ is not assignable to type ‘{ id: string; price: number; quantity: number; totalPrice: number; na…
Undefined when searching with Find Mongoose Express
I receive an array of products that I need to search for with Mongoose, so I use Find passing the _id of each product. But when going through the array and trying to search, I only receive the data of the first product, for the others I always receive undefined. This is my code: In my MongoDB database I have
await does not affect async function
Hi i’m fairly new to javascript and I’m having a problem with my async function inside the AddEventListener method that is not awaiting the fetch result, so when i try to console.log(track_info.tracks) it prints out undefined. Answer Solution You need to add an await to the call of getTrack. var t…
FileReader not defined in Apps Script
I am trying to use FileReader.readDataAsUrl() to send a blob object in a JSON file. But I keep getting the error Reference Error: “FileReader” is not defined. Is there a way that I need to implement it since I am using Apps Script? I see an issue someone had where they set their sandbox to IFRAME …
Compare and update two arrays without losing mutated data
I have an array of objects contains data of persons then I add data to this array to each element where I end up with new key called money with value of 20 as the following and the array becomes like this Now, I have a new array with new data (new person) but missing the money I have added
How to block a function from being called?
I’m trying to figure out how to block the magnify function whenever you hover over an item on this page: https://hibid.com/lots?q=cisco&status=OPEN I see that is is loaded in this script function magnify(o,t,e=””): https://cdn.hibid.com/cdn/pwa/1.15.3.34/scripts.6a4acc6484fe8adf.js Any h…
Increment over time all elements of a class
In my homepage, I’m trying to have a bunch of numbers go from 0 to their default value. Those numbers are all inside spans with a specific class. And, I have some jquery to animate them. But it only works for the last number in the list… all the previous ones stay at their default value. Any idea …
How can i skip “undefined”?
I want to create a script, which will be grouping all not empty rows. But, i have problem with checking getDepth or getRange when group doesn’t exist. I get “undefined” and i can’t create easy check like “if getDepth < 0 or “undefined”” because script stoppin…