Path Segment Parse

Node scripts often split path-like strings into directory, base name, and extension pieces.

path_parts.ts

type PathParts = {
    directory: string;
    base: string;
    extension: string;
};

function splitPath(path: string): PathParts {
    const segments: string[] = path.split("/");
    const file: string = segments[segments.length - 1];
    const dot: number = file.lastIndexOf(".");

    return {
        directory: segments.slice(0, -1).join("/"),
        base: file.slice(0, dot),
        extension: file.slice(dot + 1)
    };
}

const fileName: string = ;
const parts: PathParts = splitPath(`data/${fileName}`);

console.log(`${parts.directory}:${parts.base}:${parts.extension}`);

type PathParts = {
    directory: string;
    base: string;
    extension: string;
};

function splitPath(path: string): PathParts {
    const segments: string[] = path.split("/");
    const file: string = segments[segments.length - 1];
    const dot: number = file.lastIndexOf(".");

    return {
        directory: segments.slice(0, -1).join("/"),
        base: file.slice(0, dot),
        extension: file.slice(dot + 1)
    };
}

const fileName: string = ;
const parts: PathParts = splitPath(`data/${fileName}`);

console.log(`${parts.directory}:${parts.base}:${parts.extension}`);

path parts Separating path parts lets script code route files by name or extension without changing the real filesystem.