Intro Joined Codes

This intro problem practices TEXTJOIN. TEXTJOIN combines multiple text values with a delimiter between each value. Update the output cells so each row joins the available pieces with "-" between them. When a piece is missing, skip it without creating repeated "-" characters. See Examples

Your solution should use cell references so it updates automatically if the input cells change values.

Need help with TEXTJOIN details and syntax? Review the TEXTJOIN function guide first.

TEXTJOIN
A1
fx

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