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varfoo=functionbar(){// foo is visible here // bar is visible hereconsole.log(typeofbar());// Work here :)};// foo is visible here// bar is undefined here
typeof(bar). // "undefined"
typeof(foo()). // "number"
typeof(foo). // "function"
typeof(bar()). // VM5167:1 Uncaught ReferenceError: bar is not defined
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