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JavaScript 数组 at() 方法
tryjsref_array_at2
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<!DOCTYPE html> <html> <body> <h1>JavaScript Arrays</h1> <h2>Bracket Notation</h2> <p>The bracked notation [] returns an indexed element from an array.</p> <p id="demo"></p> <script> const fruits = ["Banana", "Orange", "Apple", "Mango"]; let fruit = fruits[2]; document.getElementById("demo").innerHTML = fruit; </script> </body> </html>