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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677// Test that window/globalThis remain global inside functions
console.log("=== Global Scope ===");globalThis.globalVar = "I am global";console.log("globalThis.globalVar:", globalThis.globalVar);
console.log("\n=== Inside Regular Function ===");function testRegularFunc() { console.log("Inside function, globalThis.globalVar:", globalThis.globalVar); console.log("Inside function, window.globalVar:", window.globalVar); // Set a new property from inside the function window.fromFunction = "set from inside function"; globalThis.alsoFromFunction = "also from inside"; // Test that window/globalThis are the same console.log("Inside function, window === globalThis:", window === globalThis);}
testRegularFunc();console.log("After function, window.fromFunction:", window.fromFunction);console.log("After function, globalThis.alsoFromFunction:", globalThis.alsoFromFunction);
console.log("\n=== Inside Arrow Function ===");const testArrowFunc = () => { console.log("Arrow function, globalThis.globalVar:", globalThis.globalVar); console.log("Arrow function, window.globalVar:", window.globalVar); window.fromArrow = "from arrow function";};
testArrowFunc();console.log("After arrow, window.fromArrow:", window.fromArrow);
console.log("\n=== Inside Nested Function ===");function outer() { console.log("Outer function, globalThis.globalVar:", globalThis.globalVar); function inner() { console.log("Inner function, globalThis.globalVar:", globalThis.globalVar); console.log("Inner function, window.globalVar:", window.globalVar); window.fromNested = "from nested function"; } inner();}
outer();console.log("After nested, window.fromNested:", window.fromNested);
console.log("\n=== Inside Constructor ===");function MyClass() { console.log("Constructor, globalThis.globalVar:", globalThis.globalVar); console.log("Constructor, window.globalVar:", window.globalVar); console.log("Constructor, this === window:", this === window); console.log("Constructor, this === globalThis:", this === globalThis); window.fromConstructor = "from constructor";}
new MyClass();console.log("After constructor, window.fromConstructor:", window.fromConstructor);
console.log("\n=== Inside Method ===");const obj = { method: function() { console.log("Method, globalThis.globalVar:", globalThis.globalVar); console.log("Method, window.globalVar:", window.globalVar); console.log("Method, this === window:", this === window); console.log("Method, this === globalThis:", this === globalThis); window.fromMethod = "from method"; }};
obj.method();console.log("After method, window.fromMethod:", window.fromMethod);
console.log("\n=== All tests passed! ===");