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has-unicode
===========
Try to guess if your terminal supports unicode
```javascript
var hasUnicode = require("has-unicode")
if (hasUnicode()) {
// the terminal probably has unicode support
}
```
```javascript
var hasUnicode = require("has-unicode").tryHarder
hasUnicode(function(unicodeSupported) {
if (unicodeSupported) {
// the terminal probably has unicode support
}
})
```
## Detecting Unicode
What we actually detect is UTF-8 support, as that's what Node itself supports.
If you have a UTF-16 locale then you won't be detected as unicode capable.
### Windows
Since at least Windows 7, `cmd` and `powershell` have been unicode capable.
As such, we report any Windows installation as unicode capable.
### Unix Like Operating Systems
We look at the environment variables `LC_ALL`, `LC_CTYPE`, and `LANG` in
that order. For `LC_ALL` and `LANG`, it looks for `.UTF-8` in the value.
For `LC_CTYPE` it looks to see if the value is `UTF-8`. This is sufficient
for most POSIX systems. While locale data can be put in `/etc/locale.conf`
as well, AFAIK it's always copied into the environment.