Maximum array size in Javascript

Question

I am creating Array() in javascript with 80000 elements Like

var arrRecWorkOrderNo = Array(1,2,3,,,,,,,,,,,,80000);

But unfortunately Iam getting an error: Uncaught SyntaxError: Too many arguments in function call (only 32766 allowed)

How can I solve that?

Why not create an array with 80000 elements and use a for loop to populate index i with the value i+1 for i = 0; i < 80000; ++i? — Patashu
– Patashu, Commented Jun 20, 2013 at 5:50
@RobG You can't pre-create an array of 80000 elements all with default value in Javascript? (I am not a Javascript coder) — Patashu
– Patashu, Commented Jun 20, 2013 at 6:07
@Patashu—Javascript arrays are just objects, they only have elements if they are created individually. E.g. var a = new Array(20) creates an array with a length of 20 and no members, e.g. '0' in a == false. — RobG
– RobG, Commented Jun 20, 2013 at 23:10

user1693593 · Accepted Answer · 2013-06-20 05:50:54Z

7

Don't use Array, just define it as:

var arrRecWorkOrderNo = [1,2,3,,,,,,,,,,,,80000];

Javascript has a limit of 32766 (signed short) when you put it as arguments to a constructor.

answered Jun 20, 2013 at 5:50

user1693593

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2 Comments

Actually, this is way better than my answer, duh. Deleting my answer.

That's an array initialiser or array literal.

Umur Kontacı · Accepted Answer · 2013-06-20 05:57:37Z

0

Don't use Array constructor, see Ken's answer for the right usage. Array constructor has weird behavior when called with arguments.

However, if you ever need to have more than 32766 arguments in a function (There is no excuse for that, really), you do something like:

var a = Array.apply(null, [1,,,,,,,,,,,,,,80000];

apply function sets the first parameter as this objects and second parameter as arguments.

Note: This is just a proof of concept, no one should ever have that much parameters, just accept an array.

answered Jun 20, 2013 at 5:57

Umur Kontacı

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