Preparation code

<script>
  var subject = [1, 2, 3, 4, 5],
      toString = Object.prototype.toString;
</script>

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(Object.prototype.toString.call(subject) === "[object Array]")

(typeof subject === "object" && typeof subject.join !== 'undefined' && typeof subject.length === "number")

(toString.call(subject) === "[object Array]")

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Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

• Revision 1: published by Rick Waldron on 23rd March 2011
• Revision 2: published on 24th March 2011
• Revision 3: published on 24th March 2011
• Revision 4: published by shesek on 19th August 2011

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