The substring() extracts characters from indexStart up to but not including indexStart in particular. If an indexEnd is omitted, then the substring() extracts characters to the end of a string. If an indexStart is equal to the indexEnd, then the substring() returns an empty string.
Javascript string substring() is an inbuilt function that returns a part of the string between the start and end indexes, or to the end of a string.
The syntax for the javascript string substring() method is the following.
string.substring(indexStart,indexEnd)
#javascript #javascript string substring #js