Difference between revisions of "Code Snippet: Print a File Line-by-Line"
From Coder Merlin
(Created page with "== Swift == <syntaxhighlight lang="swift"> import Foundation // Determine the file name let filename = "main.swift" // Read the contents of the specified file let contents =...") |
(No difference)
|
Revision as of 20:45, 20 January 2019
Within these castle walls be forged Mavens of Computer Science ...
— Merlin, The Coder
Swift[edit]
import Foundation
// Determine the file name
let filename = "main.swift"
// Read the contents of the specified file
let contents = try! String(contentsOfFile: filename)
// Split the file into separate lines
let lines = contents.split(separator:"\n")
// Define a variable to track the current line number
// Iterate over each line and print the line preceded
// by the line number
var lineNumber = 1
for line in lines {
print("\(lineNumber): \(line)")
lineNumber += 1
}