如何比较路径是否位于同一文件夹中

Question

我想比较天气输入路径是否在同一个文件夹中。

问题：输入路径是否在同一个文件夹中？

假设我当前的路径是f://learning/java

现在，我在名为java的文件夹中，无论哪个path直接属于java，我的函数都应该返回true。

假设我有以下几条路径：

1. f://learning/java/first/ true
2. f://learning/java/1.java true
3. f://learning/java/machine/learning false
4. f://learning/java/a/b false
5. f://learning/java/ true
6. f://learning/f false

我让尝试了，就像下面这样：

​

function pathDirectlyBelongsToSameFoler(currentPath, incomingPath) {
  if (currentPath == incomingPath) return true;
  // other comparision code i don't know
}

var currentPath = 'f://learning/java';

console.log(pathDirectlyBelongsToSameFoler(currentPath, 'f://learning/java/first'));
console.log(pathDirectlyBelongsToSameFoler(currentPath, 'f://learning/java/1.java'));
console.log(pathDirectlyBelongsToSameFoler(currentPath, 'f://learning/java/machine/learning'));
console.log(pathDirectlyBelongsToSameFoler(currentPath, 'f://learning/java/a/b'));
console.log(pathDirectlyBelongsToSameFoler(currentPath, 'f://learning/java/'));
console.log(pathDirectlyBelongsToSameFoler(currentPath, 'f://learning/f'));

​

Answer 1

您可以构建动态正则表达式并对传入路径进行测试。

​

function pathTester(currentPath, incomingPath) {
if(incomingPath == currentPath) return true
  currentPath += currentPath.endsWith('/') ? '' : '/'
  let reg = new RegExp(String.raw `^${currentPath}[^\/]*\/?$`)
  return reg.test(incomingPath)
}

var currentPath = 'f://learning/java';

console.log(pathTester(currentPath, 'f://learning/java/first'));
console.log(pathTester(currentPath, 'f://learning/java/1.java'));
console.log(pathTester(currentPath, 'f://learning/java/machine/learning'));
console.log(pathTester(currentPath, 'f://learning/java/a/b'));
console.log(pathTester(currentPath, 'f://learning/java/'));
console.log(pathTester(currentPath, 'f://learning/f'));

​