Retrieving checkbox status in an HTML table using JavaScript -

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I am trying to remember the syntax to get an element inside the table using javascript. There is a table with a checkbox. It is a dynamic checkbox or I will only use getElementById. Here's how I am doing it. I know that I am close, but so far it has yet thought. Even I have the code: 

  table_name.rows [0] .cells [0] .item [0]   
 or < / P> 
  tbl_run_avail.rows [1]. Seals [0]. [0]    
 
 
 Since you are using DOM level 0, you probably Looking for the property:  
  table_name.rows [0]. Seals [0]. ChildNode [0];   
 The above acknowledges that the check box is the first child node in your table cell. In this situation, you can avoid the unnecessary index using the property:  
  table_name.rows [0]. Seals [0]. First hair;

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