I am trying to re-use existing Express application and basically port it to firebase functions. I have a project structure like this: /src/app/index.js /functions/index.js The whole set up works well when using firebase emulators:start. I can call the functions and everything works properly. However I am unab…
Tag: javascript
JavaScript Array objects not printing to console
I have a code snippet that is suppose to print array object to log but not working wondering if someone could help. I am trying to get the subscriptionExpirationDate and item What works Console prints Purchased What Does not work console prints Undefined Could someone explain how to get the other objects to p…
How to properly use useHistory () from react-router-dom?
How to use useHistory() correctly? I can’t make the transition from one react component to another. According to the instructions from the React documentation and also here on Stack Overflow, I cannot make the transition from App.js to MyComponent.js. For example – I am trying I also tested this e…
javascript why i cannot appendchild to html div using javascript function
i need to append a child control to html element using javascript, the problem is that the child is appear when call the function and disappear directely the child must be in a form tag this is the code when i append child to the html elemet the element h1 is added to the layout appear and disappear immediate…
what’s up with tensorflow.js MNIST example nextbatch implementation?
While taking inspiration from the tensorflow.js Handwritten digit recognition with CNNs tutorial, I stumbled upon the following implementation of the nextBatch function in mnist_data.js: I understood the point of this function was selecting the images and the corresponding label. The problem with the provided…
How to enable the download window prompt for javascript-based Selenium-webdriver?
I am using ‘selenium-webdriver’ npm package to simulate an endpoint user – I click on buttons, select drop-downs and checkboxes. I come across an image that will help me download a PDF file. So what I want and what happens when I manually click on this image button on a regular chrome tab is…
Adding a created date field from _id to all mongo documents
I am trying to add a new field createdDate to all existing documents using _id field. I am doing this for easy readability of the documents. I tried following snippet but it is not working. This is the createdDate for all my documents now (after running the query): “1970-01-01T00:00:00.000+00:00” …
How to generate an exponential curve between two values with a given amount of data points
I am trying to implement a function as follows but really lack the math skills, any help would be greatly appreciated. The function should take an amount of data points x and return an array of size x containing exponentially increasing values from 0 to 100 (for example). Ideally it should also accept a lambd…
How to access JSON object element when the name of the element is a date?
I am developing a profit and loss tracker for an MMO, it uses the games API to get data about certain items in the games economy. It returns this data as a JSON object, I am attempting to use this data to populate graphs in future. I’m struggling to access each element of the object. The data returned l…
Attempting to concat user input to array – react native
I want to take user input and update my bar chart according to the Y-axis value the user inputs. However, my function updateArray currently is updating the bar chart. Any ideas? Answer Put your data in state. then update your state.