The substring is extracted from this string. slice ( start, end ) Parameters: This function uses three parameters as mentioned above and described below: string: It holds the string content. See the example below for negative parameters passed for a slice in JavaScript.ĭocument. The slice () function is a string function of Node.js which is used to extract sub-string from a string. If negative parameters are passed then it starts counting from the end of the string. If this argument is not passed then the splice method extracts the rest of the string from startPosition.ĭocument.write('slicedString is: ', slicedString1) ĭocument.write('slicedString is: ', slicedString2) Use the start and end parameters to specify the part of the. You have to pass the following two arguments:ġ) startPosition: index from which extracting is to be done.Ģ) endPosition: index to which end the extracting of string. The slice() method extracts parts of a string and returns the extracted parts in a new string. Negative Values With slice (), when you enter a negative number as an argument, the slice () interprets it as counting from the end of the string. But they have a couple of key differences that you need to be aware of. slice method returns extracted string in a new string.Īpply slice method on str. JavaScript's string substring () and slice () functions both let you extract substrings from a string. You can use the slice in JavaScript for extracting some part of the string.

Javascript string slice