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<!DOCTYPE html> <html> <body> <h1>Demo: JavaScript Global and Local Variables </h1> <p id="p1"></p> <p id="p2"></p> <p id="p3"></p> <script> let greet = "Hello " // global variable function myfunction(){ let msg = "JavaScript!"; //local variable document.getElementById("p1").innerHTML = greet + msg; } myfunction(); document.getElementById("p2").innerHTML = greet; document.getElementById("p3").innerHTML = msg; //error:can't access local variable </script> </body> </html>
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