I have an array of n length and I want to generate a new array to act as a list of its indexes such that the indexes are “striped” into blocks. By “striping” I mean that we’ll move up the indexes from A-Z in an incremental fashion multiple times, retaining a patterned order. For …
Tag: arrays
JSON formation from a JSON data
I have the JSON data below. I need the JSON to split and form a new JSON data object. I’m new to this and am struggling to get a way to solve this. below JSON data: This has to be done for all the session_id values in the input JSON data. It has to form all the JSON data to
How to duplicate an object in an array by given quantity, ES6 and above
I’m trying to convert an array of objects where i return duplicated objects if the object properties quantity is greater than 1. My code: So my code above does work, does return what i wanted, however i feel like there is a better/smoother and more of ES6 and beyond method. Could anyone please suggest a…
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 convert array into a tree structure in javascript
This is my array. I am just trying to frame a hierarchy tree with grandparent->parent->child name relationship. Please help me fix this. Sample input will be like below Expected Output is something like this. Please ignore if any syntax errors Answer You could use reduce and forEach methods to create ne…
Sort array based on values in another array
I have 2 arrays as follows. Array 1 And the next array Array 2 I want to sort the array1 according to the data order in array2. I have tried something like this but it’s giving me a undefined result Can someone help me with this? Answer
Create N dimensional grid of points in JavaScript
I know there are similar questions out there (the closest one I found was this JavaScript; n-dimensional array creation) but most one them are in Python and even this one I found I tried to implement in my code and It didn’t work. So I want to create a function createGrid(L,n) that take as parameters tw…
How to add a column to 1d json array and save it to a file?
CONTEXT I am trying to save an array to a text file. My array is a js variable arrR (say): [-0, 0.0016, 0.0034, 0.005, 0.0067, 0.0082, 0.0103, 0.0116, 0.0135, 0.0154, 0.017] The function below saves the array in a text file: And this works nicely. WHAT I WOULD LIKE TO DO Instead of having a .txt file like: [-…
Only one button in my javascript function when I want two
I am doing an assignment for class and attempting to make a javascript function with a button to show the value on a slider component. However, the function only shows one button when there should be two. I am passing two values in my array. I can’t find the error. Any help would do. DEMO.html MakeSlide…
passing props directly to utility function
i have below common function for sorting, and i am calling above function like as below, for numeric type i am sorting based on nominalSize, now i would like to pass this field directly from here sortSelectOptions(options, null, ‘numeric’) as prop. The options are array of objects and one of the p…