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How do I check if a variable is a jQuery object or plain DOM element?
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Check out the instanceof operator. Show activity on this post. The best way to check the instance of an object is through instanceof operator or with the method isPrototypeOf() which inspects if the prototype of an object is in another object's prototype chain.
The Document Object Model (DOM for short) is a representation of an HTML document. It may contain any number of DOM elements. At a high level, a DOM element can be thought of as a "piece" of a web page. It may contain text and/or other DOM elements.
The jQuery selector finds particular DOM element(s) and wraps them with jQuery object. For example, document. getElementById() in the JavaScript will return DOM object whereas $('#id') will return jQuery object.
jquery property.instanceof jQuery (instanceof on MDN)nodeType property
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