Previous tutorials on node.js could be found at [1], [2], [3].
Reading files is easy in node.js via the package fs. The following shows the straightforward procedure in event-driven model to read a text file that contains simply ‘Hello, World!’ string.
The file are not read in immediately, instead, it tells node.js that when the file checks completes (stat) and do a further check if it is a file (not a directory) and then start reading file contents using fs.readFile however this is a non-block I/O, it continues execution. When the file reading is completed, it notifies with either data on success or err on errors.
If the file size is huge, we can try an alternative which is more efficient via using the stream, we specify the event on(‘data’).
Both examples are easy to understand the following is the outcome.
–EOF (The Ultimate Computing & Technology Blog) —
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