cloudhead/less.js — Issue #674: `!=` in guard expressions?
Author: pdaoust
Created: 2012-03-01 19:12:13+00:00
State: open

I tried to use `!=` in a guard expression in one of my mixins, and the compiler got angry at me with the message:

```
SyntaxError: expected ')' got '!' in /home/paul/Documents/VineGlass, Thee/www/wp-content/themes/theevineglass/css/mixins.less:226:66
225
226 .rhythmlines (@fontsize, @lineheight, @margintop) when (@fontsize != 1) {
```

I see in the documentation that Less doesn't support the inequal, not equals, whatever-ya-wanna-call-it operator. Is there a specific reason for this -- e.g., `!` is a token of some sort?