You may have come across a website page where the The SolutionA A link that does not navigate to a new page or section of a page may be used to define empty links during development, but using an The void operator is often used merely to obtain the undefined primitive value, usually using “void(0)” (which is equivalent to “void 0”). In these cases, the global variable undefined can be used instead (assuming it has not been assigned to a non-default value). "The reason you’d want to do this with the href of a link is that normally, a javascript: URL will redirect the browser to a plain text version of the result of evaluating that JavaScript. But if the result is undefined, then the browser stays on the same page. void(0) is just the smallest script possible that evaluates as undefined." The Acts like a If you call a function like: And the You might have occasionally came across “javascript:void(0)” in an HTML Document. It is often used when inserting an expression in a web page might produce some unwanted effect. To remove this effect, “javascript:void(0)” is used. This expression returns undefined primitive value. This is often used with hyperlinks. Sometimes, you will decide to call some JavaScript from inside a link. Normally, when you click a link, the browser loads a brand new page or refreshes the same page (depending on the URL specified). But you most likely don’t desire this to happen if you have hooked up some JavaScript thereto link. To prevent the page from refreshing, you could use void(0). Using “#” in anchor tag: When writing the following code in the editor, the web page is refreshed after the alert message is shown. Example: html
Output:  What does javascript:void(0) mean? Using “javascript:void(0);” in anchor tag: Writing “javascript:void(0);” in anchor tag can prevent the page to reload and JavaScript functions can be called on single or double clicks easily. Example: html
`style`2`h1`01 `"color:green"`7`h1`03
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