如何使用JavaScript从URL抓取任何句段？

Question

我有一个网址： http://localhost:8080/school/teacher/reports/chapter-quiz/student

在最后一段，我只需要这样做

var lastSegment = location.pathname.split('/').pop();

但是，如何抓住最后一个旁边的一个呢？ 章知多少

Answer 1

我会说这样的话？

var segments      = location.pathname.split('/');
secondLastSegment = segments[segments.length - 2];

Answer 2

分割细分

var pathArray = window.location.pathname.split( '/' );

---

创建变量

• var segment_1 = pathArray[1];
• var segment_2 = pathArray[2];
• var segment_3 = pathArray[3];
• var segment_4 = pathArray[4];

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用它

console.log(segment_4) --> chapter-quiz

Answer 3

你可以用这个

var t = window.location.pathname.split("/")
t.pop();
t.pop();
t.pop();

Answer 4

此函数将返回路径的特定部分，从末尾开始计数。
pathFromEnd(url, 0)返回最后一部分， pathFromEnd(url, 1)返回倒数第二部分，依此类推...它了解url语法：有/无协议，尾部斜杠，参数...

 function pathFromEnd(url, pos) { return url.match(new RegExp("^(?:.*?:\\\\/\\\\/)?[^\\\\/]*(?:\\\\/([^\\\\/?]*))*?(?:\\\\/[^\\\\/?]*){" + pos + "}\\\\/?(?:\\\\?.*)?$"))[1]; } alert(pathFromEnd("http://localhost:8080/school/teacher/reports/chapter-quiz/student", 1)); alert(pathFromEnd("localhost:8080/school/teacher/reports/chapter-quiz/student/", 1)); alert(pathFromEnd("www.example.com/school/teacher/reports/chapter-quiz/student?a=b", 1));