JavaScript Array.isArray() 方法
JavaScript Array.isArray() 方法用于检查对象是否是一个数组。
以下是 Array.isArray() 方法的代码 −
示例
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>Document</title> <style> body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .sample { font-size: 20px; font-weight: 500; } </style> </head> <body> <h1>JavaScript Array isArray()</h1> <div class="sample"></div> <button class="Btn">CLICK HERE</button> <h3> Click on the above button to check if the above object is an array or not </h3> <script> let fillEle = document.querySelector(".sample"); let arr = ["cow", "bull", "lion", "tiger", "sheep"]; fillEle.innerHTML = arr; document.querySelector(".Btn").addEventListener("click", () => { fillEle.innerHTML = "The above object is an array: " + Array.isArray(arr); }); </script> </body> </html>
输出
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