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Note that the separator is expressed as a regular expression. This means that you can use any pattern that can be expressed as a regular expression as a separator. But it also means that you must escape any special characters of regular expressions if you are using these as plain text (e.g. you must use "\\|" to use | as a separator). See examples below.
Examples
split("one,two,three",",")returns
["one","two","three"]...
split("one::two::three","::")returns
["one","two","three"]...
split("one::two::","::")Returns returns
["one","two",""]...
split("::::","::")returnsReturns
["","",""]...
split("field1|field2|field3","\\|")
returnsReturns
["field1","field2","field3"]...
This expression will split the string at any single digit between 0 and 9:
split("some text1more text3final text","[0-9]")
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returns
["some text","more text","final text"]
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