As part of a larger project, I'm receiving arrays in a form similar to this: $out = array( '2011' => ['Out', 'arrv'], '2012' => ['Out'], '2013' => ['Out'], '2014' => ['Out'], '2015' => ['Out'], '2016' => ['some', 'none', 'test'], '2017'…
interface Item { slug: string; description: string; } interface Params { id: number; items: Item[]; } function test(params: Params) { const result = {}; for (const item of params.items) { result[item.slug] = "Hello"; } return result; } const data =…
I'm having an issue retrieving email addresses from the 3rd col in an array (obtained from a Gsheet) using filter and map functions. The call is printing an empty array in the log. Can someone please explain what I'm doing…
Given an array, I want to generate its "prefixes", meaning for an array of size N, I want one array containing the first element, an array containing the first two, an array containing the first three, and so on until…
I have 6 input fields I am capturing user inputs and placing into a new array to filter out a table. I am using keyup on the inputs and pushing the inputs into the query array. However, every new keyup…
Given the array [ [Spain , Madrid , 10-12-2024] [Spain , Barcelona , 10-15-2024] [Suisse , Berne , 10-18-2024] [France , Paris , 10-22-2024] [France , Lyon , 10-24-2024] ] How to easily get a new array ordered by countries…
javascript multidimensional Array get first array last elment,second array second element and 3 array first element input array=[[1,2,3],[4,5,6],[7,8,9]]; output= [3,5,7]; how to get output with loop in multidimensional array
I have an array of object as arr1 = [{catid: 1, name: 'mango', category: 'fruit'}, {catid: 2 name: 'potato', category: 'veg'}, {catid: 3, name: 'chiken', category: 'nonveg'},{catid: 1, name: 'apple', category: 'fruit'}, {catid: 1, name: 'banana', category: 'fruit'}]; I want…
When I inspect an instance of an array (like const arr = [1, 2, 3];), the prototype chain for that array will point to Array.prototype. However, I am not able to understand why Array.prototype is displayed as an empty array…
I have an 2 Array var arr1 = ['A','B','C','D'] var arr2 = ['A~XX','A~XXX','B~YY','B~YYY'] I want push arr2 elements that contains 'A' to op_array var op_array = new Array(); my op_array should look like this, If 'A' is passed this ['A~XX','A~XXX']…