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30-seconds-of-code/snippets/untildify.md
Mathias Bynens 8ee50178f3 Avoid confusing prototype methods for static methods
Correct: `Array.from()` (it’s a static method)
Incorrect: `Array.join()` (doesn’t exist; it’s a prototype method)

This patch uses the common `#` syntax to denote `.prototype.`.
2018-09-28 15:44:12 -04:00

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### untildify
Converts a tilde path to an absolute path.
Use `String.prototype.replace()` with a regular expression and `OS.homedir()` to replace the `~` in the start of the path with the home directory.
```js
const untildify = str => str.replace(/^~($|\/|\\)/, `${require('os').homedir()}$1`);
```
```js
untildify('~/node'); // '/Users/aUser/node'
```