complex JavaScript object [duplicate]

Question

I have 3 Javascript arrays:

array1 = ["data", "data1", "data2"] array2 = ["data", "data1", "data2"] array3 = ["data", "data1", "data2"]

How can I combine them all, so that I can simply run a single loop and retrieve values from them.

for (let index = 0; index < mainArray.length; index++) { value1 = mainArray.array1[index]; value2 = mainArray.array2[index]; value3 = mainArray.array3[index]; }

How can I create a the mainArray to accommodate all three javascript arrays, can a complex object or json object be created?

Really depends on what your use case is when you say "combine them" and what you are trying to accomplish at a higher level — charlietfl
– charlietfl, Commented Sep 13, 2018 at 21:27
You can just spread them: let main = [...array1, ...array2, ...array3] — Mark
– Mark, Commented Sep 13, 2018 at 21:28
@charlietfl the duplicate is a duplicate too, why don't you point to the original? stackoverflow.com/questions/1584370/… — Emeeus
– Emeeus, Commented Sep 13, 2018 at 21:36
@Emeeus I only joined in on several other people closing with that duplicate. Also, is not always bad pointing at another duplicate. A user can see it also and might get usefull feedback from both — charlietfl
– charlietfl, Commented Sep 13, 2018 at 21:43

Jason Jong · Accepted Answer · 2018-09-13 21:29:06Z

You can do the following.

var array1 = ["data", "data1", "data2"]; var array2 = ["data", "data1", "data2"]; var array3 = ["data", "data1", "data2"]; var mainArray = array1.concat(array2, array3);

Then mainArray will be `["data", "data1", "data2", "data", "data1", "data2", "data", "data1", "data2"]

Is that what you're after ?`

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