array Methods arr join
Declaration
The join() method is a powerful tool in JavaScript for manipulating arrays.
It takes an array as input and returns a string by concatenating all the array elements,
separated by a specified delimiter.
The delimiter can be any string,
including an empty string, which means the array elements will be concatenated without any separator.
resources
https://developer.mozilla.org/en-US/docs/W...
https://www.w3schools.com/jsref/jsref_join...
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