programming-examples/Check whether a specified value is a DOM element .js at 599b63599ba0df3a018fab54770721cca32ef15b - programming-examples - michuIT: Everything is code

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 function is_dom_element(obj) {
     return !!(obj && obj.nodeType === 1);
   }
 console.log(is_dom_element(jQuery('body')[0]));