20 lines
521 B
JavaScript
20 lines
521 B
JavaScript
const fs = require('fs');
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const path = require('path')
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const filepath = path.join(process.cwd(), 'hello.txt');
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fs.readFile(filepath, 'utf8', function (err, contents) {
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if (err) {
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return console.log(err);
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}
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console.log("File Contents:", contents);
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contents = contents.toUpperCase();
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updateFile(filepath, contents);
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});
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function updateFile(filepath, contents) {
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fs.writeFile(filepath, contents, function (err) {
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if (err) throw err;
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console.log("File updated.");
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});
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}; |