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| enum Type { Strong, Week}
class Java {
helloJava() {
console.log('Hello Java')
}
}
class JavaScript {
helloJavaScript() {
console.log('Hello JavaScript')
}
}
function getLanguage(type: Type) {
let lang = type === Type.Strong ? new Java() : new JavaScript()
if (lang.helloJava){
lang.helloJava()
}
return lang
}
getLanguage(Type.Strong)
|