For a basic example of the _.split method in lodash say you have a serialized string of css property and value pairs and you want an array of pairs rather than just a string. The _.split method can be used to break the string into such an array by using the semicolon as a separator. Just pass the string as the first argument, along with an option limit.
A regular expression can be used as the separator, rather than a static string.
To chain with split the _.chain method can be used.