CODEWITHSUNDEEP
javascriptarrays
andrew c
andrew c

Reputation: 55

Creating a function that adds to two separate arrays depending on the input

I am trying to combine two separate functions into a single function that can push a new item into one of two available arrays, depending on what the input is (in my situation, addToProsList or addToConsList).

Here is my current code. Having issues turning it into a single function (addToList()), because I'm not sure how I would be able to indicate which array it would enter with just the 'detail' parameter. I'm assuming I would need an if/else statement. I know this is simple, I am very stuck on how to approach this.

var housePros = ['3 bed', '2 bath'];
var houseCons = ['over budget'];


function addToProsList(detail) {
  housePros.push(detail);
  console.log('Updated List: ', housePros);
}

function addToConsList(detail) {
  houseCons.push(detail);
  console.log('Updated List: ', houseCons);
}

addToProsList('big yard');
addToConsList('no garage');


function addToList(detail) {}

Upvotes: 0

Views: 61

Answers (4)

MOHAMMAD ARSHAD
MOHAMMAD ARSHAD

Reputation: 21

let housePros = ['3 bed', '2 bath'];
let houseCons = ['over budget'];

// changing the addToList variable as you can pass the array
// in which you are adding the new elementelement
function addToList(detail, addList){
  addList.push(detail);
  addList.forEach(elem => console.log(elem));
  console.log("\n");
}

addToList('big yard', housePros);
addToList('no garage', houseCons);

Upvotes: 0

CherryDT
CherryDT

Reputation: 29042

You can use a second argument that indicates whether it's a pro or con:

function addToList (detail, isPro) {
  (isPro ? housePros : houseCons).push(detail)
}

addToList('big yard', true)
addToList('no garage', false)

...or you could use an object with multiple lists:

const houseAttribs = { pro: [], con: [] }

function addToList (attrib, detail) {
  houseAttrib[attrib].push(detail)
}

addToList('pro', 'big yard')
addToList('con', 'no garage')

Upvotes: 0

Carsten Massmann
Carsten Massmann

Reputation: 28206

This could be what you are looking for:

var housePros = ['3 bed', '2 bath'];
var houseCons = ['over budget'];


function addToList(detail,cons) {
  // "first shot":
  // const list=window["house"+(cons?"Cons":"Pros")];
  // alternative (better) solution:
  const list=cons?houseCons:housePros;
  list.push(detail);
  console.log('Updated List: ', list);
}

addToList('big yard');
addToList('no garage',1);

The second argument of addToList() determines whether the item is to be pushed onto housePros (default) or houseCons (whenever the value cons is "truthy").

Upvotes: 1

Asraf Uddin Ahmed
Asraf Uddin Ahmed

Reputation: 202

I think it will help you:

var housePros = ['3 bed', '2 bath'];
var houseCons = ['over budget'];

function addToList(detail, arr) {
    arr.push(detail);
    console.log('Updated List: ', arr);
}

addToList('big yard', housePros);
addToList('no garage', houseCons);

Upvotes: 0

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