What does JavaScript void 0 mean?
javascript: void(0); is used as a placeholder URL to indicate that an onclick event is tied to the link to do the actual action. If JavaScript is blocked for some reason then this javascript: void(0); link comes into view.
How do I fix JavaScript void 0?
How can I fix javascript:void(0) errors?
- Make sure Java is properly installed.
- Enable Java.
- Reload the webpage.
- Remove cookies.
- Clear the cache.
Should I use JavaScript void 0?
Conclusion and recommendations. Use the javascript:void(0) if you want to be raw, precise and fast. Use href=”#” and prevent the default event with javascript to be a standards follower. That means no javascript:action and neither no onclick attributes, instead prevent the default event using plain Javascript.
What does run void 0 mean?
See, most browsers allow you to run scripts by entering it into the URL bar. With “void (0)”, you can do this without having to switch pages – it effectively cancels out the page load. That means that when the browser attempts to load a new page it sees null and has nothing to load.”
How does JavaScript void 0 work?
If inserting an expression into a web page results in an unwanted effect, then use JavaScript void to remove it. Adding “javaScript:void(0)”, returns the undefined primitive value. The void operator is used to evaluate the given expression. After that, it returns undefined.
What does 0 mean in JavaScript?
false
In JavaScript “0” is equal to false because “0” is of type string but when it tested for equality the automatic type conversion of JavaScript comes into effect and converts the “0” to its numeric value which is 0 and as we know 0 represents false value. So, “0” equals to false.
What can I use instead of JavaScript void 0?
There’s no real alternative to `javascript:void 0`. If you need to have a link that absolutely will not do anything, even under noscript, it’s the only solution. Using `href=”#”` is not an alternative, because it messes with the user’s navigation history. A link that has a noop href should not be a link.
Why do I get a JavaScript void error?
JavaScript void is an error, which can be seen on the web browser. This happened when a user blocks JavaScript coding on the web browser. This gives the void error when an attempt is made to run. In newer versions of Firefox, you will get JavaScript enabled by default.
What happens if href is empty?
If the a element has no href attribute, then the element represents a placeholder for where a link might otherwise have been placed, if it had been relevant. Indeed, you can leave it empty (W3 validator doesn’t complain).
How do you use void 0?
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.
Can I use a without href?
Yes, it is valid to use the anchor tag without a href attribute. Yes, you can use class and other attributes, but you can not use target , download , rel , hreflang , and type . If the answer is yes, then yes, you should use without href .
Is an empty href valid?
Although this question is already answered (tl;dr: yes, an empty href value is valid), none of the existing answers references the relevant specifications. An empty string can’t be a URI. However, the href attribute doesn’t only take URIs as value, but also URI references. An empty string may be a URI reference.
What does JavaScript void ( 0 ) mean in HTML?
15 Answers. Usage of javascript:void(0) means that the author of the HTML is misusing the anchor element in place of the button element. Anchor tags are often abused with the onclick event to create pseudo-buttons by setting href to “#” or “javascript:void(0)” to prevent the page from refreshing.
When to use JavaScript void ( 0 ) in anchor tag?
Using “#” in anchor tag: When writing the following code in the editor, the web page is refreshed after the alert message is shown. 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.
How is an anchor element abused in JavaScript?
Anchor elements are often abused as fake buttons by setting their href to # or javascript:void (0) to prevent the page from refreshing, then listening for their click events .
Why do I get hrefof void in JavaScript?
An explanation is provided here: voidoperator. The reason you’d want to do this with the hrefof 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.