¶

window.external＝ ／[Edge]

＝[object]：[object External]

AddSearchProvider＝[function]：function AddSearchProvider() { [native code] }

IsSearchProviderInstalled＝[function]：function IsSearchProviderInstalled() { [native code] }

getHostEnvironmentValue＝[function]：function getHostEnvironmentValue() { [native code] }