I have an array of object that contains different key value pairs and I’m trying to reduce this array of object using an another array. I can refer the array that need to be reduced as the “Reducible Array” and the array I’m using to reduce as “Key array”. Reducible Array: Key Array: The reduced array of object I’m expecting
Tag: json
table won’t allow me to append more than 2 cells
im trying to append the cells into the table with their data but the table won’t allow me to do it and I need to write it like this because im trying to access specific objects of the json array. any help im new to JAVASCRIPT AND JSON Answer Please stop adding row and cells with createElement() method…!
Getting the error: “data.id is undefined” while iterating a JSON array
Trying to log the data in the array but getting an error: data.id is undefined This is the JSON array which is being mapped: Answer You are logging the main array instead of the mapped item, try changing to:
Fill the empty values in my JSON (not null or “”)
I have a raw data that looks like that : I need to fill those empty values to be able to use it as an object. It’s not me who create it, I got it from an external source. I know how to fill those empty values if they were like “” or null. Sometime there is a coma after
How to dynamically create a table from a JSON with nested lists using Javascript?
I’m trying to create an HTML table from a JSON file which values can include nested lists. Example: My goal is to create an HTML table with a predefined header for the two columns: header_title_1 header_title_2 That will never change, and the table should look like this: Thanks for your help ! Answer Using the for…in iterator on the object
Mapping in map in json response
I need to parse json api response, with response.data equals: and I need to return one array[String] with all subcategories, ex [“web-development”, “backend-development” … “3D modeling”] All that I did is: and it returns Array of arrays with categories. Im sure, that there near a better and easier way. Thanks! Answer Try using Array flatMap
Filtering arrays in JS/React
So here I have search functionality. Everything works fine except when an Item has not been found in the array. I have tried something with objects.Keys but it is displaying it on the render not when the Book has not been found like it should. Should I use if statement or. Answer You’re filtering the category names instead of the
How do I parse part of a JSON object that has mixed string and numbers?
I have a JSON file that was processor generated with lines like this I can target the ‘jsonData’ object but that returns everything within the double quotes as a string. I tried …dataset[0].jsonData[8] which returns the ‘3’ from the first value. I guess I could throw the mixed strings into a JS function and use regex to remove the extra
query mongoDb to substract timestamp
I want a query to subtract day from a Date. I test this: {“lastSeen”: { “$gte”: {“$date”: { $subtract: [ “$date”, 1616000000 ] }}}} But doesn’t work. I have this error on Gamesparks. Error parsing JSON. Please use valid JSON, including double-quotes on object keys. Any ideas. Thank you. Answer As this is a JSON file, you will need to
Get multiply key’value in object that have the same key
JSON data: I want loop that search for e.g. David’s texts and show it in HTML: I’m sorry for the bad expression but I don’t know how to explain this. Answer HTML Content JS Content