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I have a string that could look like this:
line1
line2
line3
line4
and I want to remove the last line (line4). How would I do this?
I attempted something like this but it requies that I know how many characters the last line contains:
output = output.Remove(output.Length - 1, 1)
905
The idea is to use the deleteCharAt() method of StringBuilder class to remove first and the last character of a string. The deleteCharAt() method accepts a parameter as an index of the character you want to remove. Remove last character of a string using sb.
Method 2: Use the strip() Function to Remove a Newline Character From the String in Python.
To remove the last three characters from the string you can use string. Substring(Int32, Int32) and give it the starting index 0 and end index three less than the string length. It will get the substring before last three characters.
Another option:
str = str.Remove(str.LastIndexOf(Environment.NewLine));
When the last line is empty or contains only white space, and you need to continue removing lines until a non-white-space line has been removed, you just have to trim the end of the string first before calling LastIndexOf:
str = str.Remove(str.TrimEnd().LastIndexOf(Environment.NewLine));
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