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JavaScript const 数组常量
tryjs_array_var
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<!DOCTYPE html> <html> <body> <h1>JavaScript Arrays</h1> <h2>Declaring an Array Using var</h2> <p id="demo"></p> <script> var cars = ["Saab", "Volvo", "BMW"]; // Here cars[0] is "Saab" { var cars = ["Toyota", "Volvo", "BMW"]; // Here cars[0] is "Toyota" } // Here cars[0] is "Toyota" document.getElementById("demo").innerHTML = cars[0]; </script> </body> </html>