void is often a keyword which, when provided that has a parameter of 0 returns undefined, which doesn't use any more means to handle a return worth that may take place without the need of specifying the 0 (it is more memory-management/effectiveness welcoming).
1 href="#" may lead to unpleasant surprises - like aborted xhr requests, that come about for being known as with a click on to that website link. I lately experienced a hard time debugging a website which aborted oidc login asked for, In the event the user took place for being within an tackle that wasn't the foundation of the website. # href caused it to reload the handle ahead of xhr request obtained finished.
If an anchor ingredient is utilized like a non-anchor it ought to have its href established to javascript:void(0); with the sake of graceful degradation.
What happens if a witness is necessary to vacation on the US to produce a deposition but is refused entry?
Romance Film a few player who hides out in his neighbor's condominium to stay away from a lady, only to tumble to the neighbor
Yes, it is awful and also a small crime versus humanity, but nonetheless so is Online Explorer 6 generally.
In some cases, it is important to return undefined as opposed to the results of an expression. Then void can be utilized to discard that end result. Just one such scenario consists of javascript: URLs, which ought to be prevented for hyperlinks, but are valuable for bookmarklets.
Some builders use href='#' for the same purpose, but this results in the browser to jump to the highest of your web page, which will not be preferred. And he couldn't just go away the href blank, due to the fact href='' is actually a backlink back to the current website page (ie it results in a page refresh).
Utilizing is the two extra semantic, and spares you from this full discussion about what to hack into an anchor's href. Edit: looks like @Ronnie Royston's response below by now has this argument coated.
If I make use of the href="#" for other objective, sometime it'll take me again on the login website page. Right after I change the href="#" to href="javascript:void(0)", The problem is resolved.
As a result, we only will need just one site for your application and mainly the many tags do not have an actual href pointing to other internet pages.
As several of the other answers have identified, the a aspect necessitates an href attribute along with the # is utilized to be a placeholder, but Additionally it is a historic artifact.
Not surprisingly, should you be making use of javascript: inside the hyperlink, return false would reduce that script from staying executed anyway, so in that sense It will be ineffective.
3 @Malvlio - the person will never see the primary difference for your trival software, but they're going to for greater programs. It's also just bad style to use inefficient code when a great deal extra successful code is less complicated to write (significantly when on the list of promises of jQuery is usually to "publish significantly less").
Inserting a # while in the aspect's href specifies the basis anchor, and that is by default the highest with the web site, but you can specify a read more different location by specifying the name attribute inside of a component.