How can I javascript truncate string without worrying about word boundaries?

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I guess you may have heard about the slice() method — using this, we can extract a portion of a string based on the index positions provided.

Now, if you want to keep the first N characters and truncate the rest, you can use this approach and let your worries about boundaries be tossed away:

javascript

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var pathname = document.referrer;
var truncatedPathname = pathname.slice(0, 20); // Truncate to 20 characters
document.getElementById("foo").innerHTML = "<a href='" + pathname + "'>" + truncatedPathname + "</a>";

Simple, clean, and gets the job done!