How to add value in an array with function

Question

var dictionary = {"val1": ["arr1", "arr2"], "val2": ["arr3", "arr4"]}

var addNew = ["arr5", "arr6"]
dictionary["Val3"] = AddNew

I would like to write a function to add another arr value into an array. For example: "val1": ["arr1", "arr2", "arr7]

But whatever I tried it's not working. I am new and I hope somebody can help me.

But whatever I tried it's not working Post it and let us help you... — B001ᛦ
– B001ᛦ, Commented Sep 1, 2017 at 15:07
from what you've posted: dictionary.val1.push("arra7") and dictionary.val3 = addNew (not AddNew) should do what you want. — Elmer Dantas
– Elmer Dantas, Commented Sep 1, 2017 at 15:07

Ricardo diaz · Accepted Answer · 2017-09-01 17:22:09Z

3

You can use this for add a property to the object

var dictionary = {
"val1": ["arr1", "arr2"], 
"val2": ["arr3", "arr4"]
}
var add =  function(prop, arr){
dictionary[prop].push(arr);

}

add("val2", "arr5");

/////////////////////////////

edited Sep 1, 2017 at 17:22

answered Sep 1, 2017 at 17:16

Ricardo diaz

414 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Sebastian Simon · Accepted Answer · 2017-09-01 15:09:33Z

2

Do it like this:

dictionary.val1.push("arr7");

addNew is not AddNew; val3 is not Val3. JavaScript is case-sensitive.

answered Sep 1, 2017 at 15:09

Sebastian Simon

19.8k8 gold badges61 silver badges88 bronze badges

1 Comment

goktanehrlich Over a year ago

Worked perfectly, thank you so much, my friend. As I told I am new and sorry for taking your time.

Karl Reid · Accepted Answer · 2017-09-01 15:09:37Z

0

You could use the concat function to add new elements to the end of the relevant array :

var dictionary = {"val1": ["arr1", "arr2"], "val2": ["arr3", "arr4"]}

var addNew = ["arr5", "arr6"]
dictionary["val1"] = dictionary["val1"].concat(addNew);

answered Sep 1, 2017 at 15:09

Karl Reid

2,2671 gold badge12 silver badges18 bronze badges

Comments

CodeSmith · Accepted Answer · 2017-09-01 16:14:28Z

0

If I guessed right what you wanna add an array under new PROPERTY of OBJECT, not into ARRAY

function (targetObject, propertyName, newArray){
    targetObject[propertyName] = newArray;
}

Or you wanna add inside existing PROPERTY of OBJECT?

function(targetObject, targetProperty, newArrayToAdd){
    Array.concat[targetObject[targetProperty], newArrayToAdd]    
}

edited Sep 1, 2017 at 16:14

answered Sep 1, 2017 at 15:14

CodeSmith

3,2171 gold badge19 silver badges34 bronze badges

3 Comments

goktanehrlich Over a year ago

This was exactly what I need. Thanks.

Karl Reid Over a year ago

Uncaught ReferenceError: PropertyName is not defined - be careful with case. It's also a bit pointless to wrap a basic language feature (obj[prop] = val) into a function.

CodeSmith Over a year ago

Yes, I wrote that from directly here, typo;) He asked for a function that does that I delivered. I didn't question was it a good point to do so.

Collectives™ on Stack Overflow

How to add value in an array with function

4 Answers 4

Comments

1 Comment

Comments

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

Comments

1 Comment

Comments

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related