How to trim a slice of bytes in Golang?
In Go language slice is more powerful, flexible, convenient than an array, and is a lightweight data structure. The slice is a variable-length sequence which stores elements of a similar type, you are not allowed to store different type of elements in the same slice. In the Go slice of bytes, you are allowed to trim all the leading and trailing UTF-8-encoded code points from the given slice using Trim() function. This function returns a subslice of the original slice by slicing off all leading and trailing UTF-8-encoded code points which are specified in the given string. If the given slice of bytes does not contain the specified string in it, then this function returns the original slice without any change. It is defined under the bytes package so, you have to import bytes package in your program for accessing Trim function.
func Trim(ori_slicebyte, cut_string string) byte
Here, ori_slice is the original slice of bytes and cut_string represent a string which you want to trim in the given slice. Let us discuss this concept with the help of the given examples: Example 1:
Original Slice: Slice 1: !!GeeksforGeeks## Slice 2: **Apple^^ Slice 3: %geeks%New Slice: Slice 1: GeeksforGeeks Slice 2: Apple Slice 3: %geeks%
Final Slice: Slice 1: Welcome to GeeksforGeeks Slice 2: Learning how to trim a slice of bytes Slice 3: ^^Geek&&
Another approach: Using the bytes.Trim function
We can trim a slice of bytes using the bytes.Trim function from the bytes package. The bytes.Trim function takes two arguments: a slice of bytes and a string containing one or more characters to trim from the beginning and end of the slice. The function returns a new slice that contains the original slice with all instances of the specified characters trimmed from the beginning and end.
Note that the bytes.Trim function can be used to trim any set of characters, not just whitespace characters. To trim a specific set of characters, simply pass a string containing those characters as the second argument to the bytes.
Time Complexity: O(n)
Auxiliary space: O(n)
Please Login to comment...