How to dynamically add cells to a table using JS?

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  Tell me how to write the code for such a task correctly.
  
  There is a table with inputs by type: https://jsfiddle.net/v9ckyu3w/2/
  
  Task: when inserting an array, for example [[1,2,3], [1,2,3], [1,2,3]], starting from this input , lines should be added, in the amount = length of array and columns, in number = length of subarrays.
  
  When pasted into B1, you should get: https://jsfiddle.net/Ltz0s8x5/
  
  It is desirable that the values ​​from the arrays be inside the created cells. For example, in B1 -1, in C1 - 2, in C3 - 2 ...

  JavaScript Elliott Simmons, May 8, 2020

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1 Answers
• 0
  https://jsfiddle.net/j0v5fb8y/

  Anonymous

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