Text files are a very important part of computer programming. They can be used to store data, read input from the user, or read information from the internet.
In this blog post, we will show you how to read a text file into a string variable and strip newlines from it.
This is a very useful skill that every programmer should know!
How to read a text file into a string variable and strip newlines?
First, let’s create a text file. We will name it “test.txt” and we will put the following text into it:
This is a test.
We will now read this file into a string variable. We will use the Python programming language for this example, but the same principles apply to other languages as well. Here is the code that we will use:
#python with Wholeblogs f = open("test.txt", "r") # open the file in read mode text = f.read() # read the contents of the file into the variable "text" f.close() # close the file
The variable “text” now contains the entire contents of the file. However, there is a problem: the contents of the file are read in with the newline characters still attached to them. This means that if we print out the contents of “text”, it will look like this:
This is a test.
We can see that there are two newline characters at the end of each line. This is not what we want! We can strip these newline characters off by using the “strip” function:
# python with Wholeblogs text = text.rstrip() # remove all trailing whitespace, including newlines
Now, if we print out the contents of “text”, it will look like this:
Hello, world! This is a test.
We have successfully read in a text file and removed all newline characters from it! This is a very useful skill to know when working with text files. Thanks for reading!
That’s it for this blog post! We hope you found it helpful. If you have any questions, feel free to leave a comment below.