JS计数标题长度

Question

我正在尝试使用js计算标题长度，并且由于某种原因它不起作用。这是试图获得标题长度* 45

的代码

public class Main {

    public static void main(String[] args) throws Exception {
        try {
            HttpClient client = HttpClientBuilder.create().build();

            HttpPost request = new HttpPost("http://localhost:8080/components");

            request.setHeader("Accept", MediaType.APPLICATION_XML);
            request.setHeader("Content-type", MediaType.MULTIPART_FORM_DATA);

            HttpResponse response = client.execute(request);

            if (response.getStatusLine().getStatusCode() != 200) {
                throw new RuntimeException("Failed : HTTP error code : " + response.getStatusLine().getStatusCode());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

感谢您的帮助。

由于

扬

Answer 1

如果你使用JQuery那么下面的代码找到标题长度：

  import matplotlib.pyplot as plt

    indices = range(100) # already returns a list, no need to iterate again
    values = # insert 1d vector here, what you seem to use is multi-dim
    plt.plot(indices, values)
    plt.show()

Answer 2

您可以在检查长度之前检查它是否已定义：

Promise

Answer 3

使用此..这应该有用。

document.getElementsByTagName('title')[0].innerText.length;