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<!DOCTYPE html> <html> <head> <title>Javascript 使用 splice 清空数组</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body> <div>arr1.splice(0, arr1.length) 后返回的值：</div> <div id="result"></div> <script> var arr1 = ['a','b','c','d','e','f']; var result = arr1.splice(0, arr1.length); console.log(result); // 输出 ['a','b','c','d','e','f'] document.getElementById("result").innerHTML = result; </script> </body> </html>