As others have outlined, It truly is better even now to use return Wrong; in the press handler than use the javascript: protocol.
1 href="#" can result in awful surprises - like aborted xhr requests, that come about being termed with a simply click to that link. I a short while ago experienced a tough time debugging a web site which aborted oidc login asked for, If your person took place being in an handle that was not the basis of the website. # href caused it to reload the deal with prior to xhr ask for bought done.
From what I've noticed, the void operator has three widespread makes use of in JavaScript. The 1 that you are referring to, is a typical trick to produce an tag a no-op. Some browsers treat tags in another way based upon whether they Have got a href , so that is a way to make a link which has a href that does practically nothing.
bobincebobince 537k111111 gold badges672672 silver badges845845 bronze badges fifteen seven Together with fantastic publish by @bobince: I have done some analysis two or three months ago on cross-browser keyboard navigability of hrefs, like quirks and side effects; a few of you may perhaps find it beneficial: jakub-g.github.com/accessibility/onclick
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However, if the result is undefined, then the browser stays on the same page. void(0) is simply a short and straightforward script that evaluates to undefined.
In some cases, it is necessary to return undefined as opposed to the result of an expression. Then void can be employed to discard that outcome. A person this sort of problem includes javascript: URLs, which should be averted for one-way links, but are helpful for bookmarklets.
Some builders use href='#' for the same purpose, but this results in the browser to leap to the best with the page, which is probably not required. And he couldn't more info simply just depart the href blank, since href='' is a connection back again to The existing webpage (ie it leads to a page refresh).
href="#" would not specify an id identify, but does Possess a corresponding place - the top on the page. Clicking an anchor with href="#" will shift the scroll placement to the best.
This is effective good but it tends to make the website page scroll to the highest as the # in the href tells the browser to do this.
The main reason you’d want To accomplish this with the href of a url is the fact Generally, a javascript: URL will redirect the browser to the plain textual content Model of the result of evaluating that JavaScript.
new revision so you're able to see the conduct When you've got scroll bar within the browser: jsbin.com/ipoda3/two
In this case, clicking a backlink tagged with ... will never bring about your browser to deliver any HTTP requests any where; all it will do is scroll to the very best of the page.
I used to be looking for a solution that doesn't refresh web pages but opens menu things on Ipads and telephones.
Outdated thread but considered I might just increase that The key reason why builders use this build just isn't to produce a lifeless link, but because javascript URLs for a few purpose do not move references into the active html factor properly.