Remove isarray dependency

[jimmywarting]

think we can replace it with Array.isArray

[calvinmetcalf]

Not on all targeted platforms I don't believe

[mcollina]

Is Array.isArray present everywhere on all our target platforms?

[jimmywarting]

Wich platform do we target?

[calvinmetcalf]

actually now that I look at it, isArray seems to be available on all the platforms, we can test

[dcousineau]

The isarray package in its entirety is:

var toString = {}.toString;

module.exports = Array.isArray || function (arr) {
  return toString.call(arr) == '[object Array]';
};

And can more simply be inlined, not required.

[Croydon]

Before I have opened #318 I should had searched first. Shame on me :)

So what's the plan here? You discussed in the pull request which was going to remove the isArray dependency, then you decided to make it inline 69d13e3#diff-279988bef5e6fbf7ed82cae28ecc2d59 just to revert this again in the next commit ea4eaba#diff-279988bef5e6fbf7ed82cae28ecc2d59

So...what is the plan?

[jimmywarting]

Bumping my thread 2 years later after still seeing it being used in my dependency graph from latest karma (2.0.2)...

Can we bump the major version soon and remove the dependency and perhaps the inlined version also?

looks pretty green to me:

Still wonder what platform you are targeting in current version and next major bump

[mcollina]

Yes, we will do that in the coming weeks. We will cut a new major release from Node 10 as soon as possible (but it will take a while).