1# wcwidth 2 3Determine columns needed for a fixed-size wide-character string 4 5---- 6 7wcwidth is a simple JavaScript port of [wcwidth](http://man7.org/linux/man-pages/man3/wcswidth.3.html) implemented in C by Markus Kuhn. 8 9JavaScript port [originally](https://github.com/mycoboco/wcwidth.js) written by Woong Jun <woong.jun@gmail.com> (http://code.woong.org/) 10 11## Example 12 13```js 14'한'.length // => 1 15wcwidth('한'); // => 2 16 17'한글'.length // => 2 18wcwidth('한글'); // => 4 19``` 20 21`wcwidth()` and its string version, `wcswidth()` are defined by IEEE Std 221002.1-2001, a.k.a. POSIX.1-2001, and return the number of columns used 23to represent the given wide character and string. 24 25Markus's implementation assumes the wide character given to those 26functions to be encoded in ISO 10646, which is almost true for 27JavaScript's characters. 28 29[Further explaination here](docs) 30 31## License 32 33MIT 34