How to use the slice function from path

Find comprehensive JavaScript path.slice code examples handpicked from public code repositorys.

path.slice is a method that extracts a portion of a file path and returns a new string without modifying the original.

material_sync.js

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 * @param {string} path 
 * @returns 
 */
const relative2Doc = (path) => {
    const base = docBasePath(path);
    return base ? path.slice(base.length) : path;
}


const ensureTrailingSlash = (path) => {
    if (typeof path !== 'string') {

How does path.slice work?

path.slice works by taking two numeric inputs: start and end.

These inputs represent the starting and ending indexes of the substring to extract from the file path.

The method returns a new string that contains the extracted portion of the original path.

If start is greater than end, the method returns an empty string.

If start or end is negative, the method uses the length of the file path to calculate the index as an offset from the end of the string.

By using path.slice, you can extract a portion of a file path without modifying the original string, which can be useful in situations where you need to work with substrings of file paths.

Ai Example

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const path = require("path");

// Create a file path
const filePath = "/home/user/documents/example.txt";

// Extract the file name from the file path using path.slice
const fileName = path.slice(filePath.lastIndexOf("/") + 1);

console.log(fileName); // example.txt

In this example, we use path.slice to extract the file name from a file path. We first create a file path string representing the file /home/user/documents/example.txt. We then use lastIndexOf to find the index of the last forward slash in the path string. We add 1 to this index to get the starting index of the file name substring, which we pass to path.slice along with no end parameter to extract the rest of the string. Finally, we log the extracted file name to the console. The resulting output demonstrates how path.slice can be used to extract substrings of file paths without modifying the original string.

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