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mmarchini/callback-readFile.js

Created August 10, 2020 21:53
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callback-readFile.js
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callback-readFile.js
// Callback version
const { readFile } = require('fs');
function readJsonFile(file, cb) {
readFile(file, (err, data) => {
if (err) {
// If error while reading file, propagate the error via callback
return cb(err, null);
}
// Unexpected invalid JSON input, code will throw
cb(err, JSON.parse(data));
});
}
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