I could really use some help Debugging a problem. Im trying to build a nested object (tree) from a very unusual array im getting from a backend (dont have access to the BE so i have to work with what i got). I’ve gotten 95 percent of it done but im running into a bug I know there are many
Tag: arrays
Merge 2 arrays of object based on specific object key
I have 2 arrays which is contains same id with different value (inside selected) My goal is to merge both become 1 array. When I use spread operator like this: It comes the data being override First array Second array How can I make both of arrays become 1 ? the expected result: What am I doing wrong in the
JavaScript rendering object containing arrays as table
I have an object (equipmentTable) containing arrays of values for each column in a table. I am having trouble getting this table to render properly. I think I am pretty close. Here is the object: And what I have tried: No matter what I try, everything renders in the first column. Any help is appreciated! Answ…
How to replace array values with another arrays values in Angular8
I have two sample data named oldArray and newArray. I want to replace oldArray objects with newArray objects if makeLineName and makeProcessTypeId of both oldArray and newArray is same. For Ex – In oldArray, we have TestDemo1 and Test565 makeLineName available and same TestDemo1 and Test565 makeLineName…
How to combine the values which is array of the same property in the object’s array javascript
For the following array : I need a function that should merge arrays with the same keys in the object. Answer Try to use reduce
Datatables CRUD operations
I am developing a tasking application that tracks tasks with various metadata for the tasks. When the task is created, the options are saved to a related list. However, the metadata tags may change as the task progresses. I am using DataTables to display the options. The below code loads in the full list of o…
Calling array object in src does not work
I have an array : I am looping in it: This here does not work: src={icon} Correct way should be like this: If I replace the {icon} with string it works! Can someone tell me why? Thank you Answer The reason this doesn’t work is because <Icon src=”xxx” /> does not expect a string but an …
Can’t get eventListener to display value in console
Hey guys im new to javascript and trying to get a better understanding of it, i am trying to make a 8 ball project and currently just to see if it works get it to display in the console but all i recieve is that it is undefined Answer There are a number of issues in your code: You are
Change of pictures over and over by using setInterval
Below is a program that is to loop pictures with fade-in effect. It includes this statement: I understand that this statement assigns the opacity value of a window object to a variable opacity, but there is no such opacity variable declaration of any elements in the program! When I remove this statement, it o…
Javascript 2d array select around from single point
Say I have a 15×15 2d array See the character A? at y:9 and x:4 (index starts with 0). What I want to do here is to update the array where I select or update the 0s around the A to, say, asterisk (*). For an example, lets say I want 0s around the A as far as 3 indexes