I’m trying to push different objects at each time, but it changes the front components while looping the for loop. Here is my code. And my result looks like this. I can’t understand why at 2th loop, responseArray[0] changes {“data”:0} to {“data”:1}. I want my responseArray …
Tag: arrays
TypeError: unshift is not a function
I have todos array of objects passed as props to a TodoList component. I’m trying to add a new object to the array of objects. I created a method called addTodo which adds the first todo’s object & when I tried to add the second todo it fails with the error: TypeError: this.state.todos.unshift…
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 st…
How to get every element in an array in an if statement js [closed]
Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 1 year ago. Improve this question So I’m trying to check names through an array and I don’t want to have to use Answer depend o…
Javascript – Group array of objects by array of keys
I have this problem, I want to group array of objects, each containing type array, into object of arrays. Start: Desired result Where I am stuck, not sure how to now map that type array 😀 Currently just have a.type[0], which is bad. Answer You need to loop over all the elements of a.type.
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
arrays disappearing in method scope
I am trying to create a class to my javascript game to add multiplayer but within the class i am having problems with the values of arrays changing as you can see in the sendNetEntities() function I think im having problems with variables somehow being references of something instead of instances. But im not …
Value differences inside an array [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 1 year ago. Improve this question Let’s say I have this array: I am trying to find the difference betwe…
How can I remove the last comma from a map?
I have, How can I remove the last comma in banana, apple, orange, the result of the code, that is, the one after orange and make it look something like this: banana, apple, orange? Thank you very much! Answer
Is there an algorithm for merging elements of an array of objects with the same key
I have the following data, and I’ve been looking for a reference to an algorithm for building a returned array that is grouped by a field (e.g. discipline) and pushes in all the unique fields. Initial Dataset: Desired Result: Answer There is no particular algorithm for this problem, what you can do is b…