36 lines
746 B
Markdown
36 lines
746 B
Markdown
---
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title: Read file lines
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tags: node,array
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cover: solitude-beach
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firstSeen: 2017-12-17T17:55:51+02:00
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lastUpdated: 2020-10-22T20:24:04+03:00
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---
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Returns an array of lines from the specified file.
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- Use `fs.readFileSync()` to create a `Buffer` from a file.
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- Use `Buffer.prototype.toString()` to covert the buffer to a string.
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- Use `String.prototype.split()` to create an array of lines from the contents of the file.
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```js
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const fs = require('fs');
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const readFileLines = filename =>
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fs
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.readFileSync(filename)
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.toString('UTF8')
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.split('\n');
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```
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```js
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/*
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contents of test.txt :
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line1
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line2
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line3
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___________________________
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*/
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let arr = readFileLines('test.txt');
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console.log(arr); // ['line1', 'line2', 'line3']
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```
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