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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <title>Document</title>
- </head>
- <body>
- <script>
- var arr = ["2025","7","22"];
- // 将数组合并成字符串 join 可以指定分隔符进行拼接
- // 如果没有指定分隔符 “”。那么就会把数组中每一个值紧密连接在一起
- var val1 = arr.join("-");
- var val2 = arr.join("");
- console.log(val1,val2);
- </script>
- </body>
- </html>
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