I was just experimenting around with the Function.prototype.call and Function.prototype.apply function, when I stumbled upon an error that I didn't understand: I wanted to trim all the elements in an array, Naturally, I would have written: const arr = ['…
I am trying to display image in HTML. With 2 functions where users can click next or previous image. The next button works until it reach the max array in filePath and create an error. this is what the console…
How to fetch Object inside Array of Array? I am getting undefined myArray = [ [{ name: test1, username: sampleuser1 }], [{ name: test2, username: sampleuser2 }], [{ name: test3, username: sampleuser3 }] ]; const forEachUser = await Promise.all(myArray[[0]].map(async (userSelected)…
I am trying to read the filenames of a directory, split the individual filename into an array, then return an array with the index positions and the split filename arrays. Right now it will only read and return one file.…
In PHP they have non-integer indexes to access arrays. So you must iterate over an array using a foreach loop. This becomes problematic when you need to take some decision. For example this array sample "result": [ { "timeStamp": "1622101761",…
(newbie question) I am trying to figure it out why the following code works. The goal is to create keys from array elements and a .count (number of times the ID appears in the range). I am approaching it this…
So I have an array and I want to merge or totals it base on its name Here is an example data: [ { name: "Name1", amt : 100, tax : 10, total : 110 }, { name: "Name2", amt…
I know Javascript Array has map, filter and the like, and reduce can be used as a way merge them (though I really dislike the syntax, it does work). However, a simple example below can prove that it is not…
For example, there is a line: const string = "a {{bcd}} e {{f}}" The result will be an array like this: const result = ["a", "{{bcd}}", "e", "{{f}}"]; I tried the following code, but the regex result was sent to…
Need mongodb query : if I get a order , vendorID in input params that already exists with specific orderNumber I need to update it in orders array by replacing the whole existing order element with that orderNumber with newly…