JavaScript: Why do I have to create a var and a function for a .onclick event when I only want it to create a function?

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IT Professional Trainer with 15 years of experience in IT Industry

You don’t. You can pass an anonymous function to the onClick. object.onclick = e => { // handle event here...};or object.addEventListener(“click”, e => { // handle event here...});
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IT Professional Trainer with 15 years of experience in IT Industry

Your question is not clear. But I will give you an answer to your question. var is initializer ob variables / HTML elements object. When you are want to create an event function that time you needs some elements, objects will be works in your function. So you need to create var for init for your elem...
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Your question is not clear. But I will give you an answer to your question. var is initializer ob variables / HTML elements object. When you are want to create an event function that time you needs some elements, objects will be works in your function. So you need to create var for init for your elements. read less
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Use of var means variable valid for only current execution context or local context or the variable is local.
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