JavaScript Problem: Counting Duplicate Elements in an Array
In this tutorial we are going to tackle a JavaScript problem of counting duplicate elements in an array. We are going to look at a couple of different ways solve this using forEach, reduce and the comma operator.
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Tutorials referred to in this video:
Comma Operator: • JavaScript Tip: Using the Comma Operator
Reduce Method: • The Magic of the reduce Array Method
ES5 Array Methods (including forEach): • Getting Comfortable with the ES5 Array Met...
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