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This article mainly introduces "what are the methods of js to determine whether an element has a specified class name". In daily operation, it is believed that many people have doubts about the method of js judging whether an element has a specified class name. The editor consulted all kinds of materials and sorted out simple and useful operation methods. I hope it will be helpful for you to answer the question of "what is the way for js to determine whether an element has a specified class name?" Next, please follow the editor to study!

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Web front-end development learning Q-q-u-n: 731771211, sharing learning methods and small details that need to be paid attention to, constantly updating the latest tutorials and learning methods (detailed front-end project live teaching videos, PDF) var p = document.getElementsByTagName ('p'); for (var I = 0 Bing I)

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