The read method in Ruby On Rails allows you to read data stored in a file.
Following is how you use the read method:
In the syntax above file represents the file pointer of the opened file.
To use this method, you must first open up a file using the open method and then call the read method on the now open file.
The read requires no parameters to work.
The read method returns all the data stored in the file.
The following is an example where we read and print the stored data in a .txt file in the same directory as our main file.
# opening the filef = File.open("to_read.txt")# reading data from the file and storing itdata_read = f.read# closing the filef.close# printing the read data to the consoleputs data_read
Instead of opening and closing a file every time to read, you can use the File.read method. The File.read method takes in the name of the file you want to open and reads and returns the data stored in it.
Following is a code example showing its usage:
# opening the filedata_read = File.read("to_read.txt")# printing the read data to the consoleputs data_read
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