ADD Snippet suggestions

[Ak-ram]

Please suggest any code fragment you feel should be included in the scss-helpers extension for use in future releases. For instance:

Suggest _pow snippet for

@function pow($base, $exponent) {
  $result: 1;
  @for $_ from 1 through $exponent {
    $result: $result * $base;
  }
  @return $result;
}

YOUR suggestion must prefixes with underscore (ex, _pow, _invert)