I’m a total beginner and I’m stuck completely on this problem. I’m supposed to use a for loop to traverse an array, pushing odd numbers to the ‘odd’ array, and evens to the ‘even’ array. No numbers are showing up in my arrays when I test the code. I’ve tried wri…
editing a JSON in JS and putting it in an array
so I have the following json. I need to remove the items that don’t have a value in the “available” field (such as NEO and ETH and set the result in an array. Then remove the onOrder and btcTotal fields. such as: BTC 0.00024868 0.00024868 BNB 0.8943066 0.0004663808919 I am writing my little …
Serialize a list of numpy arrays and read back/deserialize into Javascript
Consider a list of numpy arrays: I would like to serialize this to transmit to a Javascript REST client. The preferred approach is Efficiently serialize into a binary-safe format and bake that into a Base64 encoded field in a JSON object Transmit the JSON object over http Receive the JSON object into javascri…
How to update an object in React?
My React app retrieves a list of Items from a database and stores them in state, like this: Now I want to modify each Item in itemList by adding in some sub-data. Each Item has the key ‘userID’; I want to loop over each item to get the corresponding userID, and then copy that into the Item object.…
How to send CSV data from Neo4j query results through Node.js/AdonisJs
Currently, I have some code that query from Neo4j database then write to a CSV file on server: const session = driver.session(); const query = ‘‘; var file = fs.createWriteStream(‘…
Listen to a specific data attribute in events
I need to listen to a message event that will have a data attribute and depending on this attribute do different actions. Now, I want to test this with a button by dispatching such an event. However, I can only find the detail attribute, but not how to set the data attribute: and How can I send with the data
How to simulate keypress with a button click on Javascript?
I am currently working on a calculator and wondered if there is a way to link keypresses to buttons so when I click a button, it simuliates the key being pressed and sends that info to the textbox. When I google, all the info I get is enabling buttons by keypresses but not the other way around. If someone cou…
How to pass correct state value into callback function inside useEffect hook?
I’m trying to change a state of a variable that holds photo ID when a user presses arrow keys or clicks on an image, then I render my image depending on that photo ID. CODE: Setting up a state by clicking/un-clicking on an image works without a problem, the state is set to a correct number. But my funct…
Js if multiple values check if ==
I can create like that code in js? if example == 0, 2, 4, 6, 8 { code here } else if { code here } I mean check example have one of this value I dont wanna create many lines code example if == 0 , if == 2 ets Thanks for help Answer I think what you want
Any nice way to groupBy while transforming values with lodash
I am inexperienced with lodash, but I believe it can help me transform data into a desired format. I have tried varying level of methods described in the documentation, but I can not wrap my head around everything. I’ve looked here on SO, a few blogs, and the documentation. I have tried combining groupb…