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The following example will alert the number of paragraphs in a element having the class content on document ready event. Parent child selector selects all direct child elements of the specified element. Chrome Devtools Google Developers Style Guides Css Css Table AlertNumber of elements in content div matchedlength. Get number of elements ina div . JQuery has a size function which will return the number of times that an element appears but as specified in the jQuery documentation it is slower and returns the same value as the length property so it is best to simply use the length property. Count the number of divs inside a div using jQuery. It will traverse all the way down to the last leaf of the selected element in the DOM tree. Syntax parent child Example HTML. The find method is used to find all the descendant elements of the selected element. However if you want get the numbers of all child elements regardless of their types just use the universal selector ie. ...