I’m trying to use the .reduce method to sum the amount of different Expense objects. These Expenses can be of different type, and I’d like to keep the objects in the array splitted by that. So for example, the following array of expenses: Should become this: Also note that there should not be amou…
Tag: arrays
Function which is swapping Elements in an Array of Arrays, returns undefined at the specific Indexes
I have an Array of Arrays. My Array is called splitarr[Array2[],Array1[],Array0[],Array3[]…]. It is not ordered correctly from Index Zero to index 2. So I want to swap splitarr that it looks more like this => splitarr[Array0[],Array1[],Array2[],Array3[]…]. However my code does not seem to work.…
how to add new calculate array object to existing array
I have an array new calculate object : Total1 = Phnom Penh + Takeo Total 2 = Prey Veng + Seam Reap then I want to add these two object to existing array (data) Anyone please help me to do like this? Thanks Answer You could use a bespoke function that filters out the relevant objects, and then calculates their
jQuery – Filtering table rows using an array of class names
I have a table with some values and a filter option where the user can select multiple values and filter the table. What I am trying to achieve is to have a filter with numbers from 1 to 10, and table tr with class names filter_1, filter_2, filter_3 etc. when I choose number 1 from filter and click on it,
Displaying Opencv.js Matrix without cv.imshow()
Hello Stack Overflow community. I am attempting to extract the pixel values from a cropped section of an opencv matrix to a javascript array in order to feed that data into a tensor for OCR. I cannot use cv.imshow() because it interacts with the DOM and my process is on a web worker. This is what I have so fa…
Recursive data in JSON object
} OK guys I have such JSON structure what I need is to: return all topics in array, in this example it will be: [“SERVICE_STATUS_PRESETS”, “AIRCRAFT_ACTIVATION”, “OUT_OF_SERVICE”, “PROMO_CODES_REQUESTS”, “BANNERS”, “DOCUMENTS”, “USE…
How do I search through an array using a string, which is split into an array?
I currently have a half solution to this, but I was wondering if there is a better way to write this. I have the following array with equipment deliveries: Which I search through using an input: What I’m trying to achieve is to split the search word with spaces, and check if an index in the array contai…
Sortying array by two criteria
I have array like this: And I’m trying to sort this array so elements that are isImportant: true with the most recent date are displayed first and then elements that have isImportant:false with the most recent date Answer I hope this will resolve your issue
get “neighbours” directly next to value/node in 2d array/grid
How would I change this method to not return the corner neighbours and instead only the neighbours directly above, below, left and right? Answer If you allow me, I would avoid those two for loops and I would just test directly, using ifs, to see if the neighbours I need exist. See below, if my pseudo code hel…
How to update “prevState” in react.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 3 years ago. Improve this question I have got a list of array of objects. I want to update the state. When I click on the 1st i…