Code: Alles auswählen
with open('test.txt','r') as f:
for char in f:
print (char+ '*')
Code: Alles auswählen
% ~~Stars~~ Asterisks everywhere
%
% 2022-10-23
# Assignment
Read lines from a potentially large (>200 MB) file, and print the lines with „*“
characters between each character.
Example input file:
```
Hello
World
```
Expected output:
```
H*e*l*l*o
W*o*r*l*d
```
# Requirements
Just standard library stuff to open a file and read it line by line.
fs = require "fs"
readline = require "readline"
# The main function
Create a reader object to process the file line by line. `crlfDelay` is set so
_carriage return_ followed by a _newline_ is read as one _newline_ character.
Sort of the „universal newlines“ settings in [Python](https://www.python.org/).
main = ->
reader = readline.createInterface
input: fs.createReadStream "test.txt"
crlfDelay: Infinity
Sprinkle ~~stars~~ asterisks between the characters for each line from the
reader, and print that to the console.
console.log line.split("").join("*") for await line from reader
Have an explicit `null` return value, so _CoffeeScript_ doesn't generate code to
collect the results of the loop iterations in an array. Especially as the
assignment states the potential size of the input file(s) in the hundrets of
megabytes.
null
----
Now call the main function.
main() if require.main == module
And we are done.