Set the target attribute of the link to _blank:

<a href="#" target="_blank" rel="noopener noreferrer">Link</a>

For other examples, see here: http://www.w3schools.com/tags/att_a_target.asp

Note

I previously suggested blank instead of _blank because, if used, it'll open a new tab and then use the same tab if the link is clicked again. However, this is only because, as GolezTrol pointed out, it refers to the name a of a frame/window, which would be set and used when the link is pressed again to open it in the same tab.

Security Consideration!

The rel="noopener noreferrer" is to prevent the newly opened tab from being able to modify the original tab maliciously. For more information about this vulnerability read the following articles:

• The target="_blank" vulnerability by example
• External Links using target='_blank'

This is a trick,

function openInNewTab(url) {
  window.open(url, '_blank').focus();
}

// Or just
window.open(url, '_blank').focus();

In most cases, this should happen directly in the onclick handler for the link to prevent pop-up blockers, and the default "new window" behavior. You could do it this way, or by adding an event listener to your DOM object.

<div onclick="openInNewTab('www.test.com');">Something To Click On</div>

Reference: Open a URL in a new tab using JavaScript