Arrays: Combining them in such a way

Question

So I am trying to combine two arrays but I think all that I've read here is different than what I want to achieve. So here are my initial arrays:

oldArray = ['name','age','address','number'];

firstArray = ['Peter Parker','16','Queens','123456789']; // this is dynamic but will still have the same set nonetheless.

so what I want to do is combine them into this:

heroList  = ['name','age','address','number'],['Peter Parker','16','Queens','123456789'];

So I've tried combining them using concat() method and it was producing the wrong output so Im wondering how I should format them to combine to my desired output.

What you want to achieve is not possible because a variable can't be "two arrays" like that ... did you mean heroList = [['name','age','address','number'],['Peter Parker','16','Queens','123456789']]; - which is simply heroList = [oldArray, firstArray] — Jaromanda X
– Jaromanda X, Commented Jul 24, 2017 at 22:57
@JaromandaX this is exactly what I wanted to do thanks! I'll accept your answer since you're the first one :) — Alfred M.
– Alfred M., Commented Jul 24, 2017 at 23:10

Max · Accepted Answer · 2017-07-24 23:04:16Z

3

as mentioned in the comments your notation for heroList is syntactically wrong, but I am guessing you mean: heroList = [['name','age','address','number'],['Peter Parker','16','Queens','123456789']]; ?

Maybe something like this:

oldArray = ['name','age','address','number'];
firstArray = ['Peter Parker','16','Queens','123456789'];

var heroList = [
  oldArray,
  firstArray
];

answered Jul 24, 2017 at 23:04

Max

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Comments

andreybleme · Accepted Answer · 2017-07-24 23:01:27Z

1

By reading you expected output, the heroList should be an object, with the two arrays as attribute. Try this:

var oldArray = ['name','age','address','number'];

var firstArray = ['Peter Parker','16','Queens','123456789'];

var heroList = [];

heroList.push(oldArray);
heroList.push(firstArray);

answered Jul 24, 2017 at 23:01

andreybleme

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user7951676 · Accepted Answer · 2017-07-24 23:06:24Z

1

You could use a multi dimensional array:

heroList = [[ 'name' , 'age' , 'address' , 'number' ],[ 'Peter Parker' , '16' , 'Queens' , '123456789' ]];

You can make this from a single dimensional array like:

arr1 = [ 'name' , 'age' , 'address' , 'number' ]
arr2=[ 'Peter Parker' , '16' , 'Queens' , '123456789' ]; 
newArr=[arr1,arr2]

answered Jul 24, 2017 at 23:06

user7951676

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YCotov · Accepted Answer · 2017-07-24 23:02:00Z

0

You can try this one:

var heroList = (firstArray.join(",") + "," + oldArray.join(",")).split(",")

answered Jul 24, 2017 at 23:02

YCotov

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Alfred M. · Accepted Answer · 2017-07-24 23:12:59Z

0

You're right the example is syntactically wrong so In a hierarchy order i will just accept the first persons answer.Thanks

answered Jul 24, 2017 at 23:12

Alfred M.

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