JavaScript function to simplify Unix Path !

To simplify a Unix-style absolute file path in JavaScript, you can use a stack-based approach.

This involves splitting the path by `/`, processing each part, and reconstructing the simplified path.

Here's a clear example:

✅ JavaScript Function to Simplify Unix Path

function simplifyPath(path) {
const parts = path.split('/');
const stack = [];

for (const part of parts) {
if (part === '' || part === '.') {
continue; // Skip empty or current directory
} else if (part === '..') {
stack.pop(); // Go up one directory
} else {
stack.push(part); // Valid directory name
}
}

return '/' + stack.join('/');
}

📌 Example Usage

console.log(simplifyPath("/home/")); // Output: "/home"
console.log(simplifyPath("/a/./b/../../c/")); // Output: "/c"
console.log(simplifyPath("/../")); // Output: "/"
console.log(simplifyPath("/home//foo/")); // Output: "/home/foo"
console.log(simplifyPath("/a//b////c/d//././/..")); // Output: "/a/b/c"


🔍 Explanation
`.` means current directory → ignore it.
`..` means go up one level → pop from stack.
Empty strings from multiple slashes `//` → ignore.
Valid directory names → push to stack.


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