lib/extensions.js
function isSupportedEnvironment(platform, arch, abi) {
  return (
    false !== getHumanPlatform(platform) &&
    false !== getHumanArchitecture(arch) &&
    false !== getHumanNodeVersion(abi)
  );
}
function isSupportedEnvironment(platform, arch, abi) {
  return (
    false !== getHumanPlatform(platform) &&
    false !== getHumanArchitecture(arch) &&
    false !== getHumanNodeVersion(abi)
  );
}
function isSupportedEnvironment ( platform , arch , abi ) { return ( false !== getHumanPlatform ( platform ) && false !== getHumanArchitecture ( arch ) && false !== getHumanNodeVersion ( abi ) ) ; }
Check that an environment matches the whitelisted values or the current
environment if no parameters are passed

@param  {string} platform - The name of the OS platform(darwin, win32, etc...)
@param  {string} arch - The instruction set architecture of the Node environment
@param  {string} abi - The Node Application Binary Interface
@return {Boolean} True, if node-sass supports the current platform, false otherwise

@api public
Check that an environment matches the whitelisted values or the current environment if no parameters are passed