Js obtains the number of rows and columns of a table (compatible with IE and firefox)

This article describes how to obtain the number of rows and columns of a table through js. For example, if the id attribute value of a table is test, you can use javascript to get the number of rows and columns of the table as follows (compatible with ie and firefox !) :

Var tab = document. getElementById ("test"); // table row var rows = tab. rows. length; // Number of table columns var cells = tab. rows. item (0 ). cells. length; alert ("number of rows" + rows + "Number of columns" + cells );

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