String to array然后删除最后一个元素

Question

我有下面的字符串,我试图从他们删除最后一个目录,但我似乎无法掌握它.

JavaScript的

var x = path.split("/")
alert(path +' = ' +x.slice(0, -1));

预期结果

/foo/bar/ = /foo/
/bar/foo/ = /bar/
/bar/foo/moo/ = /bar/foo/

Answer 1

尝试:

var path = "/bar/foo/moo/";
var split = path.split("/");
var x = split.slice(0, split.length - 2).join("/") + "/";
alert(x);

演示.

Answer 2

尝试：

var sourcePath="/abc/def/ghi";
var lastIndex=sourcePath.lastIndexOf("/");
var requiredPath=sourcePath.slice(0,lastIndex+1);

输出：/abc/def/