Locate the final element within an array using JavaScript

Provided with a file path like new/lib/java.exe, I am looking to eliminate the root folder 'new' and structure the new path as lib/java.exe.

Challenge: After my attempts, I am left with the path as lib/java.exe/ which includes an unwanted "/". I want to avoid having "/" at the end of the path. Please review the code snippet below that I have been working on. Any assistance in solving this issue would be greatly appreciated.

function myFunction() {
    var path=''; 
    var str = "new/lib/java.exe";
    var res = str.split("/");
    if(res.length > 0)    
       res.shift();

   for(var i=0; i < res.length; i++){
      if(res.length == 1){
        path = res[i];
      }
      else{
        path += res[i] + "/";
      }
    }
   document.getElementById("demo").innerHTML = path;
}
javascriptarrayssplit

Answer №1

Using the Array#join() method is the way to go.

function updatePath() {
    var fullPath = '';
    var text = "old/lib/csharp.exe";
    var result = text.split("/");
    if (result.length > 0)     //removing the first item "old"
        result.shift();
    }
    document.getElementById("output").innerHTML = result.join('/');
}

Answer №2

One way to manipulate a string is by utilizing arrays and shifting values.

var text = "red/ocean/sunset.jpg";
var arrayText = text.split('/');

arrayText.shift();
var combinedText = arrayText.join('/');

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