_envPkgIsLoaded

Return if a package is loaded in a given channel.

Prototype :

fun [Chn S] I

Chn : any channel. If nil, the initial environment will be set. Else, associated environment with this channel will be set (= the initial environment + all packages and strings loaded in this channel).
S : a package name.

Return : I 1 if loaded, 0 if not loaded. It returns nil if error.

See also :

_envList

Example :

fun main ()=
	_showconsole;
	
	_fooId _envPkgIsLoaded _channel "lib/test/core/a.pkg";		// 1
	_fooId _envPkgIsLoaded _channel "lib/std/list.pkg";		// 1
	_fooId _envPkgIsLoaded _masterchannel "lib/std/list.pkg";	// 0
	0;;

Note :