awk opposite of split

Question

what would be an opposite of split() in awk? Imagine I have array containig characters/integers.

What I\'ve tried:

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Answer 1

Knowing that the opposite of split() is join(), a mere Google Search gives me this page, which seems to contain the solution : http://www.gnu.org/software/gawk/manual/html_node/Join-Function.html . It joins all the elements of an array together, and returns the corresponding string.

['f','o','o'] => "foo"

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