DefinitelyTyped/types/line-reader/line-reader-tests.ts

import lineReader = require('line-reader');

lineReader.open('line-reader-tests.ts', function(err: Error, reader: LineReader) {
	if (err) throw err;
	if (reader.hasNextLine()) {
		try {
			reader.nextLine(function(err: Error, line: string) {
				if (err) throw err;
				console.log(line);
			});
		} finally {
			reader.close(function(err: Error) {
				if (err) throw err;
			})
		}
	}
	else {
		reader.close(function(err: Error) {
			if (err) throw err;
		});
	}
});

lineReader.eachLine('line-reader.d.ts', {encoding: 'utf8'}, function(line: string, last: boolean) {
	console.log(line);
	if (last) console.log('<EOF>');
});