Join specific items in an array [closed]

I would like to join the items in a string array that contain values and keep the empty items. // example array const sentenceSplit = [“There”, “is”, “a”, “”, &…

Remove duplicated objects from array but also increase quantity

I have this list: const list = [ { name: ‘AA’, quantity: 1 }, { name: ‘AA’, quantity: 1 }, { name: ‘BB’, quantity: 1 }, { name: ‘CC’, quantity: 1 }, { name: ‘CC’, quantity: 2 }, ] And the …

How to simply find matching values in [[], [], []] arrays in javascript

new to javascript. i have these two arrays var array1 = [[‘1’],[‘2’]]; var array2 = [[‘2’],[‘3’],[‘4’]]; how can i find the matching values? tried below but returns empty array probably because it’s …

Generate an array of years with duplicates of each year + labeled season

How do i dynamically generate an array of years starting from 2004 till the current year, with each year labeled with “Spring” and “Fall” like in the attached picture? Thank you!

Compare array of object values if equals add it total

[{ingName: “egg”, quantity: “2.0”, unit: “pcs”}, {ingName: “water”, quantity: “0.03”, unit: “l”}, {ingName: “salt”, …

Cannot Read Property “toString” of Undefined – Javascript [closed]

I am attempting to take an array of numbers, convert them to strings (and then a single string) so that I can easily store multiple values in a key:value db (5 2 digit numbers -> one 10 digit …

I cant look for a value in a object array, it returns me error [closed]

Hello everyone I’m doing this music player and this is the song loader but the problem is that when I try to assing the value to song constant with lookSongbyId function it returns me an error idk why …

Generate unique combinations in JavaScript from n objects with r samples

What is the best way to generate all unique combinations in JavaScript from N objects with R samples. For example: n = [100,200,300,400] r = 3 Expected result [100,200,300] [100,200,400] […

How to get the sum of specific values in an array contained within another array

I have an object with an array which contains another array. I need to add up the values from these child arrays where the name matches each other. let arr = { expenses: [ { id:…

How can I do this with Vue js?

data: [ {name: ‘xxxxx’, surname: ‘yyyyy’, status: ‘online’}, {name: ‘xxxxx’, surname: ‘yyyyy’, status: ‘online’}, {name: ‘xxxxx’, surname: ‘yyyyy’, status: ‘offline’}, {name: ‘xxxxx’, surname: …