How to Remove Newlines from Lines Read from a File in Go?

How to Remove Newlines from Lines

In your provided Go code, you're using the bufio.NewReader to read lines from a file, and then iterating over the lines to perform some operations. However, you're encountering an issue where newlines are being appended to each line, leading to incorrect processing.

To resolve this issue, you have two options:

1. Slice Off the Last Character

You can slice off the last character of each line, which is usually the newline character:

read_line = read_line[:len(read_line)-1]

This approach manually removes the newline character from the end of the line. However, it can be error-prone if the line does not end with a newline character.

2. Use the Strings Library

A more robust way to remove newlines is to use the strings library:

read_line = strings.TrimSuffix(read_line, "\n")

The TrimSuffix function removes any occurrences of the specified suffix from the end of the string. In this case, it will remove the newline character. This approach is more reliable and handles cases where the line does not end with a newline character.

By implementing either of these approaches, you can effectively remove newlines from the lines in your code and ensure that the subsequent operations work as intended.

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